MyMedR

Displaying publications 1 - 20 of 284 in total

Abstract:

Sort:

Bufavirus genotype 3 in Turkish children with severe diarrhoea

Altay A, Yahiro T, Bozdayi G, Matsumoto T, Sahin F, Ozkan S, et al.

Clin Microbiol Infect, 2015 Oct;21(10):965.e1-4.
PMID: 26086570 DOI: 10.1016/j.cmi.2015.06.006

Recently a parvovirus called bufavirus (BuV) has been implicated as a causative agent of diarrhoea. To further reveal the epidemiology and genetic characteristics of BuV, this study was performed in Turkish children with diarrhoea. BuV was detected in 1.4% (8/583) of stool samples. All stool samples from healthy children (n = 148) were negative for BuV. Diarrhoea in BuV-positive patients was severe and occurred mainly during the colder months of the year. Complete genome sequences were generated from four BuVs. Only BuV3 was found, which was genetically and phylogenetically similar to Bhutanese BuV3, indicating that BuV3 is prevalent in Asian countries.

Matched MeSH terms: Diarrhea
Re-emergence of genotype G9 during a five-and-a-half-year period in Turkish children with rotavirus diarrhea

Bozdayi G, Altay A, Yahiro T, Ahmed S, Meral M, Dogan B, et al.

Arch Virol, 2016 Oct;161(10):2879-84.
PMID: 27444180 DOI: 10.1007/s00705-016-2986-5

This study was done to understand the dynamics of rotavirus genotype distribution in Turkish children. Samples were collected from January 2006 through August 2011 from children at a hospital in Ankara. Rotavirus was detected in 28 % (241/889) of the samples. Genotype G9P[8] was predominant (28 %), followed by G1P[8] (16.3 %) and G2P[8] (15.9 %). G9 was absent in the samples from 2006 and 2007 and then re-emerged in 2008 and increased gradually. Phylogenetic analysis showed that Turkish G9 rotaviruses of the present study formed a sublineage with strains from Italy and Ethiopia, possibly indicating spread of a clone in these countries.

Matched MeSH terms: Diarrhea/epidemiology*; Diarrhea/virology
Fulltext Emergence of equine-like G3 strains as the dominant rotavirus among children under five with diarrhea in Sabah, Malaysia during 2018-2019

Amit LN, Mori D, John JL, Chin AZ, Mosiun AK, Jeffree MS, et al.

PLoS One, 2021;16(7):e0254784.
PMID: 34320003 DOI: 10.1371/journal.pone.0254784

Rotavirus infection is a dilemma for developing countries, including Malaysia. Although commercial rotavirus vaccines are available, these are not included in Malaysia's national immunization program. A scarcity of data about rotavirus genotype distribution could be partially to blame for this policy decision, because there are no data for rotavirus genotype distribution in Malaysia over the past 20 years. From January 2018 to March 2019, we conducted a study to elucidate the rotavirus burden and genotype distribution in the Kota Kinabalu and Kunak districts of the state of Sabah. Stool specimens were collected from children under 5 years of age, and rotavirus antigen in these samples was detected using commercially available kit. Electropherotypes were determined by polyacrylamide gel electrophoresis of genomic RNA. G and P genotypes were determined by RT-PCR using type specific primers. The nucleotide sequence of the amplicons was determined by Sanger sequencing and phylogenetic analysis was performed by neighbor-joining method. Rotavirus was identified in 43 (15.1%) children with watery diarrhea. The male:female ratio (1.9:1) of the rotavirus-infected children clearly showed that it affected predominantly boys, and children 12-23 months of age. The genotypes identified were G3P[8] (74% n = 31), followed by G1P[8] (14% n = 6), G12P[6](7% n = 3), G8P[8](3% n = 1), and GxP[8] (3% n = 1). The predominant rotavirus circulating among the children was the equine-like G3P[8] (59.5% n = 25) with a short electropherotype. Eleven electropherotypes were identified among 34 strains, indicating substantial diversity among the circulating strains. The circulating genotypes were also phylogenetically diverse and related to strains from several different countries. The antigenic epitopes present on VP7 and VP4 of Sabahan G3 and equine-like G3 differed considerably from that of the RotaTeq vaccine strain. Our results also indicate that considerable genetic exchange is occurring in Sabahan strains. Sabah is home to a number of different ethnic groups, some of which culturally are in close contact with animals, which might contribute to the evolution of diverse rotavirus strains. Sabah is also a popular tourist destination, and a large number of tourists from different countries possibly contributes to the diversity of circulating rotavirus genotypes. Considering all these factors which are contributing rotavirus genotype diversity, continuous surveillance of rotavirus strains is of utmost importance to monitor the pre- and post-vaccination efficacy of rotavirus vaccines in Sabah.

Matched MeSH terms: Diarrhea/epidemiology; Diarrhea/pathology*; Diarrhea/virology
Fulltext Surveillance of norovirus among children with diarrhea in four major hospitals in Bhutan: Replacement of GII.21 by GII.3 as a dominant genotype

Wangchuk S, Matsumoto T, Iha H, Ahmed K

PLoS One, 2017;12(9):e0184826.
PMID: 28910371 DOI: 10.1371/journal.pone.0184826

BACKGROUND: Diarrhea is a major cause of morbidity and mortality among Bhutanese children. The etiology of diarrhea is not well known due to the challenges of conducting routine surveillance with Bhutan's modest research facilities. Establishing an etiology is crucial toward generating evidence that will contribute to policy discussions on a diarrheal disease control program. Our previous study, during 2010-2012, revealed that norovirus (NoV) is an important cause of diarrhea among Bhutanese children, and that GII.21 was the major genotype circulating at that time. In other countries, GII.4 is the major genotype responsible for NoV infections. In this update report, we provide new prevalence data to describe the progression of the transformation and distribution of the NoV genotype among Bhutanese children.
METHODS: From June 2013 through May 2014, diarrheal stool samples were collected at one national referral hospital in Thimphu, two regional referral hospitals in the eastern and central regions, and one general hospital in the western region of Bhutan. NoV was detected by reverse transcription-polymerase chain reaction (RT-PCR), by amplifying the capsid gene. The RT-PCR results were confirmed by nucleotide sequencing of the amplicons.
RESULTS: The proportion of NoV-positive stool samples was 23.6% (147/623), of which 76.9% were NoV GII and the remainders were NoV GI. The median age of infected children was 15.5 months, with a fairly balanced female: male ratio. NoV GII was most prevalent in the colder months (late November-mid April) and NoV GI had the highest prevalence in the summer (mid April-late September). Nucleotide sequencing was successful in 99 samples of GII strains. The most common genotypes were GII.3 (42.6%), GII.4 Sydney 2012 (15.8%), and GII.4 unassigned (11.9%). No GII.21 was found in any child in the present study. Phylogenetic analysis showed that GII.3 strains in the present study belonged to an independent cluster in lineage B. These strains shared an ancestor with those from different countries and Bhutanese strains circulating during 2010.
CONCLUSION: NoV remains an important cause of diarrhea among Bhutanese children. Genotype GII.3 from a single ancestor strain has spread, replacing the previously circulating GII.21. Current NoV genotypes are similar to the strains circulating worldwide but are primarily related to those in neighboring countries. NoV GII is prevalent during the cold season, while GI is prevalent during the summer. To develop a NoV infection control policy, further studies are needed.

Matched MeSH terms: Diarrhea
Increase in rotavirus prevalence with the emergence of genotype G9P[8] in replacement of genotype G12P[6] in Sabah, Malaysia

Amit LN, John JL, Mori D, Chin AZ, Mosiun AK, Ahmed K

Arch Virol, 2023 Jun 03;168(6):173.
PMID: 37269384 DOI: 10.1007/s00705-023-05803-9

Rotaviruses are major causative agents of acute diarrhea in children under 5 years of age in Malaysia. However, a rotavirus vaccine has not been included in the national vaccination program. To date, only two studies have been carried out in the state of Sabah, Malaysia, although children in this state are at risk of diarrheal diseases. Previous studies showed that 16%-17% of cases of diarrhea were caused by rotaviruses and that equine-like G3 rotavirus strains are predominant. Because the prevalence of rotaviruses and their genotype distribution vary over time, this study was conducted at four government healthcare facilities from September 2019 through February 2020. Our study revealed that the proportion of rotavirus diarrhea increased significantly to 37.2% (51/137) after the emergence of the G9P[8] genotype in replacement of the G12P[8] genotype. Although equine-like G3P[8] strains remain the predominant rotaviruses circulating among children, the Sabahan G9P[8] strain belonged to lineage VI and was phylogenetically related to strains from other countries. A comparison of the Sabahan G9 strains with the G9 vaccine strains used in the RotaSiil and Rotavac vaccines revealed several mismatches in neutralizing epitopes, indicating that these vaccines might not be effective in Sabahan children. However, a vaccine trial may be necessary to understand the precise effects of vaccination.

Matched MeSH terms: Diarrhea/epidemiology
Fulltext Living environment and health of under-five children in urban slums of a coastal region in South India

Roja VR, Narayanan P, Sekaran VC, Ajith Kumar MG

Ghana Med J, 2020 Dec;54(4):238-244.
PMID: 33883772 DOI: 10.4314/gmj.v54i4.6

Objective: The primary objective of the study was to determine the association between the living environment and morbidity, nutritional status, immunization status, and personal hygiene of under-five children living in urban slums in southern India.
Methods: This study included 224 mothers of under-five children living in urban slums of Udupi Taluk, Karnataka. A total of 17 urban slums were selected randomly using random cluster sampling.
Results: Undernutrition was high among children of illiterate mothers (63.8%), and the children of working mothers were affected by more morbidity (96.6%) as compared with housewives. Morbidity was also found to be high among children belonging to families with low incomes (66.1%) and low socio-economic backgrounds (93.1%). Safe drinking water, water supply, sanitation, hygiene, age of the child, mother's and father's education, mother's occupation and age, number of children in the family, use of mosquito nets, type of household, and family income were significantly associated with child morbidity, nutritional status, immunization status, and personal hygiene of under-five children living in urban slums.
Conclusion: Overall, in our study, family characteristics including parental education, occupation and income were significantly associated with outcomes among under-five children. The availability of safe drinking water and sanitation, and the use of mosquito nets to prevent vector-borne diseases are basic needs that need to be urgently met to improve child health.
Funding: Self-funded.

Matched MeSH terms: Diarrhea/epidemiology
Association between gastrointestinal manifestations following acetaminophen poisoning and outcome in 291 acetaminophen poisoning patients

Zyoud SH, Awang R, Sulaiman SA, Al-Jabi SW

Pharmacoepidemiol Drug Saf, 2010 May;19(5):511-7.
PMID: 20333776 DOI: 10.1002/pds.1940

Acetaminophen poisoning is a common clinical problem, and early identification of patients with more severe poisoning is key to improving outcomes.

Matched MeSH terms: Diarrhea/chemically induced; Diarrhea/diagnosis; Diarrhea/epidemiology*
Risk factors for endemic giardiasis: highlighting the possible association of contaminated water and food

Mohammed Mahdy AK, Lim YA, Surin J, Wan KL, Al-Mekhlafi MS

Trans R Soc Trop Med Hyg, 2008 May;102(5):465-70.
PMID: 18377940 DOI: 10.1016/j.trstmh.2008.02.004

This study was conducted to reassess the risk factors for giardiasis in communities of the Orang Asli (indigenous people) in Pahang, Malaysia. Stool samples were collected from 321 individuals (2-76 years old; 160 males, 161 females). Data were collected via laboratory analysis of faecal samples and a pre-tested standard questionnaire. River water samples were tested for Giardia cysts and Cryptosporidium oocysts. The overall prevalence of G. intestinalis infection was 23.7%. Children < or =12 years old had the highest infection rate and have been identified as a high risk group (odds ratio (OR)=6.2, 95% CI 1.5-27.0, P<0.005). The risk of getting giardiasis also appeared to be significantly associated with drinking piped water (OR=5.1, 95% CI 0.06-0.7, P<0.005) and eating raw vegetables (OR=2.4, 95% CI 0.2-0.6, P<0.005). In conclusion, sociodemographic factors have always been associated with the high prevalence of Giardia infections in Malaysia. However, the present study also highlights the need to look into the possibility of other risks such as water and food transmission routes. In future, it is necessary that these two aspects be considered in control strategies.

Matched MeSH terms: Diarrhea/parasitology*; Diarrhea/prevention & control
Fulltext A double-edged sword: a case report on liver injury side-effect of anti-tuberculosis drug on liver tuberculosis patient

Azlina Ibrahim, Alvin Oliver Payus

Borneo Journal of Medical Sciences, 2020;14(1):49-53.
MyJurnal

Hepatic involvement in extra-pulmonary tuberculosis (TB) is rare, even in the endemic area. It has a high mortality rate as it can easily be misdiagnosed due to its rarity and non-specific presentations, and the treatment can be challenging for its hepatotoxic side-effect. A 55-year old man who was newly diagnosed with AIDS and pulmonary TB which complicated with anti-TB-induced transaminitis, presented with a few weeks history of fever and persistent diarrhoea. It was initially treated as microsporidia infection but the symptoms persisted despite given antiparasitic agent for more than a week. He was subjected to computed tomography (CT) scan of the abdomen and noted multiple hypoechoic lesion at multiple segments of the liver, which later confirmed to be liver TB by liver biopsy. As he could not tolerate Akurit-4 (Rifampicin 150 mg, Isoniazid 75 mg, Pyrazinamide 400 mg and Ethambutol 275 mg), the second-line treatment was given instead. He is currently well on regular clinic appointment. The objective of this case report is to share the rare occurrence of hepatic TB and the difficulty to treat it as the hepatotoxic effect of anti-TB medications complicate the liver damage due to the infection.

Matched MeSH terms: Diarrhea
Fulltext Food poisoning outbreak in UiTM, Dungun, Terengganu, 1999.

Faizan, G., Balkis, A.K., Kasemani, E., Che Mohd Shabri, A., Amirullah, M.A.

Malaysian Journal of Public Health Medicine, 2002;2(1):50-53.
MyJurnal

Food poisoning is still a major problem in the state of Terengganu. The study was conducted during an episode of food poisoning outbreak which occurred in October, 1999, at Universiti Tekonologi Mara (UiTJ1rO, Dungun to determine the etiology, mode of transmission, source and the risk factors of the outbreak and hence to take appropriate remedial actions and preventive measures. A retrospective cohort study was conducted amongst 925 students using a standard questionnaire as well as environmental investigation and bacterial subtyping. All the samples were Malay females, age ranging jrom /9 — 22 years. It was found that majority ofthe victims (72 %) presented with abdominal cramp, 68.5% headache, 60.0% diarrhea, 55.2% fever, 45.0% nausea, 39.0% muscle
ache and 3]. 7% vomiting. The epidemic curve suggested of a common source of infection and the most probable food that has been contaminated was taken during lunch hour on October 20'I'1999, Statistical analysis showed that spices jiied chicken and "nasi minyak" were significantly associated with the illness (p < 0. 05). The most likely causative organism was Salmonella spp as supported by the clinical presentation and incubation period of the disease, identdication of contaminated food, bacterial subtyping result and environmental findings. Following the outbreaks, several remedial actions were taken including immediate close—up ofthe canteen for I4 days, treatment for the cases and health examination and typhoid immunization for all food handlers.

Matched MeSH terms: Diarrhea
Fulltext Acute abdomen: unmasked the bleeding site in severe haemophilia A

Wan Suriana Wan Ab Rahman, Zefarina Zulkafli, Mohd Nazri Hassan, Wan Zaidah Abdullah, Azlan Husin, Anani Aila Mat Zain

Malaysian Journal of Medicine and Health Sciences, 2020;16(2):345-347.
MyJurnal

Haemophilia A is an inherited bleeding disorder, commonly involve soft tissues and joints. Gastrointestinal tract
bleeding, are not uncommon but seldom highlighted. A 23-year-old male with underlying severe haemophilia A was
presented with a generalised abdominal pain for 2 days, abdominal distension, diarrhoea and vomiting. He did not
have any trauma to the abdomen. Abdominal examination revealed generalized tenderness with sign of guarding
on palpation. Laboratory investigations revealed isolated, prolonged activated partial thromboplastin time (APTT)
with normal total white blood cell count and haemoglobin level. In view of acute abdomen, which was not resolved
by conservative treatment, an emergency laparotomy was done with FVIII concentrate and recombinant factor VII
(rFVII) coverage. Intraoperative findings noted patchy gangrenous spots of about 30 cm in length in the small bowel.
Histopathology examination revealed an evidence of haemorrhage within the submucosal and intramuscularis layer
from the resected specimen. This case highlighted the possibility of gastrointestinal bleeding without prior trauma,
which can be presented as acute abdomen in severe haemophilia patient.

Matched MeSH terms: Diarrhea
Fulltext Cryptosporidiosis among children with acute gastroenteritis in the pediatric ward in the General Hospital, Penang

Ludin CM, Afifi SA, Hasenan N, Maimunah A, Anuar AK

Southeast Asian J. Trop. Med. Public Health, 1991 Jun;22(2):200-2.
PMID: 1948280

Stool samples from 836 cases with diarrhea and acute gastroenteritis from the Pediatric ward, Penang General Hospital, were examined for Cryptosporidium oocysts. A dimethyl sulfoxide modified acid fast technique was used for the identification of the parasites. 36 samples or 4.3% were found to be positive for Cryptosporidium. The prevalence of infection was higher (2.39%) in children with diarrhea and vomiting than in children with acute gastroenteritis alone (0.8%). Stool examination and cultures from the Cryptosporidium positive samples revealed no other parasites, rotavirus or enteropathogenic bacteria. This suggests that Cryptosporidium may be an important agent in the causation of diarrhea in young children. A routine laboratory examination for the detection of Cryptosporidium in the search for causal agents of childhood diarrhea in our environment may, therefore, be significant.

Matched MeSH terms: Diarrhea, Infantile/parasitology*
Molecular detection and species identification of Enterocytozoon bieneusi isolated from immunocompetent Orang Asli in Malaysia

Ashikin A, Al-Mekhlafi HM, Moktar N, Anuar TS

Parasitol Int, 2017 Apr;66(2):163-165.
PMID: 28115231 DOI: 10.1016/j.parint.2017.01.013

Most studies of opportunistic infections focus on immunocompromised patients. However, there is a lack of information on microsporidiosis in healthy people (immunocompetent) worldwide. This study aimed to detect and identify microsporidia species in immunocompetent Orang Asli living in Pahang, Malaysia. Orang Asli is a collective term for a group of indigenous people that usually reside in the interior regions of Peninsular Malaysia. They comprise about 0.7% of the total population in Malaysia and 76% of them lived below the poverty line i.e., poor housing conditions with the lack of access to safe drinking water and adequate sanitation, contaminated environment, high illiteracy rate and unhygienic practices by these people. Stool samples were collected from 209 Orang Asli and analyzed for detecting the presence of Enterocytozoon bieneusi and Encephalitozoon intestinalis by polymerase chain reaction assay targeting small subunit ribosomal RNA gene. E. bieneusi was detected in 8 individuals (3.83%). This infection was commonly found in males than females (5.2% vs. 2.7%). All infected Orang Asli were adults, with a mean age of 44years. Diarrhea and other gastrointestinal symptoms were reported in one case (12.5%) among individuals infected with this species. These findings clearly show that exposure to E. bieneusi may actually be common than reported. The accurate detection and identification of microsporidian species by molecular technique will improve therapy, clinical manifestations and prognosis of this infection, as no antiparasitic therapy has been approved for E. bieneusi. It is hoped that these findings will allow the formulation of better health management and disease prevention advisories, and improvement in the standards of health in similar communities.

Matched MeSH terms: Diarrhea/microbiology
Fulltext Comparison between yogurt and commercial probiotics in the duration of diarrhea in pediatric age group

Aamer Naseer, Humayun Iqbal Khan, Mian Jawad Ahmad, Rabia Tariq, Atif Amin Baig

Malaysian Journal of Paediatrics and Child Health, 2017;23(1):0-0.
MyJurnal

Objective: To compare the mean duration of diarrhea between children taking yogurt and with the group taking commercial probiotics, containing lactobacillus in acute watery diarrhea. Materials and

Methods: This descriptive study was conducted in the Department of Pediatrics, Services Hospital, Lahore. The duration of this cross sectional study was 6 months, from June 2013 to November 2013. A total of 200 children suffering from acute watery diarrhea were involved in the study after the informed consent under the said hospital. Their demographic information was recorded and later divided in two groups of 100 each; group A received yogurt and group B was given commercial probiotic. The duration of diarrhea was observed in both groups. The results were compared by using independent sample t-test.

Results: The average duration of diarrhea in group A, was 1.98 + 1.31 day while that in group B was 3.09 + 1.64 days. Student's t-test was applied and the difference between the two groups was found to be statistically significant (p< 0.05).

Conclusions: Treatment with yogurt significantly decreases the mean duration of diarrhea as compared to probiotic among patients with acute watery diarrhea.

Matched MeSH terms: Diarrhea
The effect of infection of hatched blastocyst bovine embryos with border disease and bovine viral diarrhea viruses

Mabruk MJ, Sheahan B, Atkins G

Southeast Asian J. Trop. Med. Public Health, 2006 Jan;37(1):113-9.
PMID: 16771222

The effect of infection with teratogenic viruses at early stages of pregnancy is not fully understood. This study aimed to look at the effect of infection with teratogenic viruses such as bovine viral diarrhea virus (BVDV) and border disease virus (BDV), on early stage embryos at the hatched blastocyst stage. BVDV and BDV are known to cross the placenta of infected mothers and lead to congenital defects and death of developing fetuses. This study can be a good model for better understanding the effects of other teratogenic viruses such as Rubella virus in humans.

Matched MeSH terms: Diarrhea Viruses, Bovine Viral; Bovine Virus Diarrhea-Mucosal Disease/pathology; Bovine Virus Diarrhea-Mucosal Disease/virology*
Experimental group A rotaviral infection in cynomolgus monkeys raised on formula diet

Leong YK, Awang A

Microbiol. Immunol., 1990;34(2):153-62.
PMID: 2161071

Rotaviral infections in cynomolgus monkeys (Macaca fasicularis) were studied to ascertain its suitability as a model of infection and diarrhea caused by group A human rotaviruses. Formula-fed monkeys were used as they could be observed closely. Experimental rotaviral infection of cynomolgus monkeys was age-dependent; only young monkeys were readily infected. Formula-fed newborns were readily infected with cell-culture-adapted human (WA) and simian (SA11) viruses and with a rotavirus from a human fecal specimen. However, diarrhea was detected only in very young animals. A number of rotaviral shedding patterns as a function of time were observed. Although there was no typical viral shedding pattern which represented exclusive association of viral infection with diarrhea, the initial level of viral excretion and the maximum level of viral shedding attained were much higher in animals with diarrhea. Seroconversion occurred in less than half of the inoculated animals. The presence of maternal rotaviral antibodies did not prevent infection or diarrhea.

Matched MeSH terms: Diarrhea/veterinary*
Fulltext Congenital chloride diarrhoea in a Malay child

Norzila MZ, Azizi BH

Med J Malaysia, 1994 Mar;49(1):102-4.
PMID: 8057982

Congenital chloride diarrhoea is a rare disorder mainly reported in Finland. A Malay child with congenital chloride diarrhoea presenting at six months of age with watery stools from birth and failure to thrive is reported.

Matched MeSH terms: Diarrhea, Infantile/complications; Diarrhea, Infantile/congenital*; Diarrhea, Infantile/drug therapy; Diarrhea, Infantile/metabolism
Fulltext Parasitic infection in a young man presenting with non-specific abdominal pain

Farnaza A, Baha L

Malays Fam Physician, 2010;5(3):148-150.
PMID: 25606208 MyJurnal

A 27-year-old man presented with a two-week history of central colicky abdominal pain associated with loose stools. Further history revealed that he had been exposed to contaminated waters. Stool investigation by direct wet stool smears revealed the presence of Entamoeba histolytica and Blastocystis hominis cysts. A diagnosis of amoebiasis secondary to E. histolytica and concurrent B. hominis infestation was made. We would like to emphasise the importance of clinical history including recent travel to endemic areas. Any suspicion of parasitic infection should prompt the clinician to investigate. Early diagnosis and management would prevent serious complications associated with E. Histolytica infection.

Matched MeSH terms: Diarrhea
Fulltext Occurrence of enteric parasitic infections among HIV-infected individuals and its relation to CD4 T-cell counts with a special emphasis on coccidian parasites at a tertiary care centre in South India

Swathirajan CR, Vignesh R, Pradeep A, Solomon SS, Solomon S, Balakrishnan P

Indian J Med Microbiol, 2017 Jan-Mar;35(1):37-40.
PMID: 28303816 DOI: 10.4103/ijmm.IJMM_16_164

CONTEXT: Diarrhoea is one of the major complications occurring in over 90% of HIV-infected individuals in developing countries. Coccidian group of parasites, being opportunistic pathogens, have been implicated as the most common causative agents of diarrhoea among HIV-infected population.

AIMS: The aim was to study the magnitude of parasitic diarrhoea with special context to coccidian parasitic infections in HIV-infected individuals and their association with the patient's immunological status measured by CD4 T-cell counts.

SETTINGS AND DESIGN: This investigation was performed between January 2002 and December 2014 at a tertiary HIV care centre in Chennai, South India.

MATERIALS AND METHODS: Stool samples were collected and microscopically observed for parasites using direct, formal-ether-concentrated wet mounts and modified acid-fast staining for coccidian parasites. CD4 T-cell counts were done by FACScount.

STATISTICAL ANALYSIS USED: All statistical analyses were performed using GraphPad Prism software, version 5.0, andP < 0.05 was considered statistically significant.

RESULTS: Coccidian parasitic infection accounted for about 23.4% of parasitic infections, and of these, Cystoisospora belli was observed to be the most common cause of diarrhoea (88.8%), followed by Cryptosporidium spp. (9.9%) and Cyclospora spp. (1.3%). Trend analysis of coccidian aetiology during the study period revealed a significant rise in the positivity of C. belli and Cryptosporidium spp. (P = 0.001). Among the HIV patients with CD4+ T-cell counts <200 cells/μL, Cryptosporidium infection was most common (90%), followed by infection with C. belli(61.4%).

CONCLUSIONS: Coccidian parasites continue to be the most common aetiological agent of diarrhoea among patients with HIV. The increasing trend of positivity of both cystoisosporiasis and cryptosporidiosis over the study period and the high positivity of cryptosporidiosis in patients with lower CD4+ T-cell counts are issues of serious concern. The findings call for the need for the early diagnosis of coccidian parasites and appropriate intervention among HIV-infected patients.

Matched MeSH terms: Diarrhea/etiology; Diarrhea/epidemiology
Fulltext Plesiomonas shigelloides associated with diarrhoeal disease in Malaysian children

Lim YS, Young LJ, Balakrishnan S

Singapore Med J, 1987 Dec;28(6):534-6.
PMID: 3441796

Plesiomonas shigelloides was isolated from 5 (2.1%) of the 234 children with diarrhoea and none of the 230 controls. In one child, the organism was found in association with Salmonella. Two strains had Shigella sonnei phase I antigen. All the strains were susceptible to the aminoglycosides, cephalosporins, nalidixic acid, nitrofurantoin, chloramphenicol and cotrimoxazole; but resistant to the penicillins. Alkaline peptone water enrichment subcultured to desoxycholale citrate agar proved to be a useful method for isolating this organism from faeces. As the roie of P. shigelloides in causing gastrointestinal disease remains controversial, further studies are necessary to determine its enteropathogenicily.

Matched MeSH terms: Diarrhea/microbiology*; Diarrhea, Infantile/microbiology

Filters

Please provide feedback to Administrator (afdal@afpm.org.my)

External Links