This study was conducted to detect the presence of heterogenous vancomycin-intermediate Staphylococcus aureus (heteroVISA) among MRSA isolates in a major hospital. Forty-three MRSA isolates with vancomycin MIC 2 microg/ml collected in 2009 was screened for heteroVISA using Etest Glycopeptide Resistance Detection (GRD) and confirmed by population analysis profile-area under curve method. The genetic relatedness of heteroVISA strains with other MRSA was examined by pulsed-field gel electrophoresis (PFGE) method. Two isolates were shown to be heteroVISA and derived from the same clone. This showed that heteroVISA strains were already present among our local strains since 2009 and were genetically related to other susceptible strains.
Orbital cellulitis is an extremely rare but potentially lethal condition in neonates. The clinical presentation of neonatal orbital cellulitis can be non-specific, and minimal signs of periorbital inflammation may go unrecognised by inexperienced parents or primary care medical personnel, leading to delayed treatment. Herein, we present a case series describing ophthalmia neonatorum complicated with neonatal orbital cellulitis owing to delayed treatment. The clinical presentation, management and outcomes are described. One neonate had orbital cellulitis, while the other had impending orbital cellulitis, with both cases resulting from delayed treatment of ophthalmia neonatorum. Both neonates were hospitalised for systemic antibiotic treatment and fully recovered with good outcomes. Timely identification and treatment of ophthalmia neonatorum are critical to mitigate potential severe sequelae, such as neonatal orbital cellulitis.