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Fulltext Detection of novel coronaviruses from dusky fruit bat (Penthetor lucasi) in Sarawak, Malaysian Borneo

Habeebur-Rahman SP, Noni V, Khan FAA, Tan CS

Vet Med Sci, 2023 Nov;9(6):2634-2641.
PMID: 37658663 DOI: 10.1002/vms3.1251

BACKGROUND: Sarawak has one of the highest diversity of fruit bats species (family Pteropodidae) in Malaysia, with 19 species described. Most coronavirus (CoV) studies have mainly focused on insectivorous bats, resulting in a lack of information on CoVs present in frugivorous bats. In addition, bat CoV surveillance activities are lacking in Malaysia.
OBJECTIVES: Our study focuses on determining the presence of bat CoVs in dusky fruit bat (Penthetor lucasi).
METHODS: Guano samples belonging to P. lucasi were collected from Wind Cave Nature Reserve. The samples were screened for the presence of CoVs using validated hemi-nested consensus RNA-dependent RNA polymerase consensus primers.
RESULTS: The bat CoV positivity rate was 38.5% (n = 15/39), with the viruses belonging to two subgenera: Alphacoronavirus (α-CoV) and Betacoronavirus (β-CoV). Phylogenetic analysis revealed that CoVs from 14 samples of P. lucasi belong to the genus α-CoV and may represent previously described genetic lineages in insectivorous bats in Wind Cave. However, only one sample of P. lucasi was detected with β-CoV which is closely related to subgenus Nobecovirus, which is commonly seen in frugivorous bats.
CONCLUSIONS: This study provides the first available data on CoVs circulating in P. lucasi.
Serosurveillance of SARS-CoV-2 in companion animals in Sarawak, Malaysia

Tan CS, Bandak DB, Habeebur-Rahman SP, Tan LT, Lim LLA

Virol J, 2023 Aug 07;20(1):176.
PMID: 37550752 DOI: 10.1186/s12985-023-02133-9

SARS-CoV-2 is a zoonotic betacoronavirus that was first reported at the dawn of 2019 in Wuhan, China and has since spread globally, causing an ongoing pandemic. Anthroponotic transmission was reported early, with confirmed infections reported in 26 species to date, including dogs and cats. However, there is a paucity of reports on the transmission of SARS-CoV-2 to companion animals, and thus, we aimed to estimate the seroprevalence of SARS-CoV-2 in dogs and cats in Sarawak, Malaysia. From August 2022 to 2023, we screened plasma samples of 172 companion animals in Sarawak, Malaysia, using a species-independent surrogate virus neutralization test. Our findings revealed the presence of neutralizing antibodies of SARS-CoV-2 in 24.5% (27/110) of dogs and 24.2% (15/62) of cats. To the best of our knowledge, this is the first report of the seroprevalence of SARS-CoV-2 in companion animals in Malaysia. Our findings emphasize the need for pet owners to distance themselves from their pets when unwell, and a strategy must be in place to monitor SARS-CoV-2 in companion animals to assess the potential impact of the virus on companion animals.
The systematic position of Hypsugo macrotis (Chiroptera: Vespertilionidae) and a new record from Peninsular Malaysia

Lim LS, Csorba G, Wong CM, Zubaid A, Rahman SP, Kumaran JV, et al.

Zootaxa, 2016 Sep 22;4170(1):169-177.
PMID: 27701281 DOI: 10.11646/zootaxa.4170.1.10

The Southeast Asian species of Hypsugo are rare bats, except for H. cadornae and H. pulveratus, which are distributed throughout the Indomalayan region. Hypsugo macrotis is restricted to Peninsular Malaysia, Sumatra, Java and adjacent islands, and is known only from a handful of specimens. Here we report a new locality record of the species from Seremban, Peninsular Malaysia, which also represents the first known building-dweller colony of any Hypsugo from the region. We discuss the taxonomic status of two morphologically similar species, H. macrotis and H. vordermanni, and provide the first COI and cyt b gene sequences for H. macrotis and reconstruct the species' phylogenetic relationships.

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