ABSTRACT
Greater Mekong inhabitants are exposed to pathogens, zoonotic and otherwise, that may influence SARS-CoV-2 seroreactivity. A pre-pandemic (2005 to 2011) serosurvey of from 528 malaria-experienced Cambodians demonstrated higher-than-expected (up to 13.8 %) positivity of non-neutralizing IgG to SARS-CoV-2 spike and RBD antigens. These findings have implications for interpreting large-scale serosurveys. Article Summary LineIn the pre-COVID19 pandemic years of 2005 to 2011, malaria experienced Cambodians from rural settings had higher-than-expected seroreactivity to SARS-CoV-2 spike and receptor binding domain proteins.
ABSTRACT
Purulent pericarditis is a rare condition with a high mortality rate. We report a case of purulent pericarditis subsequently caused by Candida parapsilosis, Peptostreptococcus asaccharolyticus, Streptococcus anginosus, Staphylococcus aureus, Prevotella oralis, and Mycobacterium tuberculosis in a previously healthy 17-year-old boy with mediastinal tuberculous lymphadenitis. The probable route of infection was a bronchomediastinal lymph node-pericardial fistula. The patient improved with antibiotic, antifungal, and antituberculous medication in addition to pericardiectomy.
Subject(s)
Adolescent , Humans , Male , Bronchial Fistula , Candida , Coinfection , Fistula , Mortality , Mycobacterium tuberculosis , Peptostreptococcus , Pericardiectomy , Pericarditis , Pericarditis, Tuberculous , Prevotella , Staphylococcus aureus , Streptococcus anginosus , Tuberculosis, Lymph NodeABSTRACT
The emerging pathogen, group C rotavirus (RVC) has been reported to cause acute diarrhea. But there was the limitation on the detection and monitoring for the absence of rapid sensitive diagnosis system. For the molecular biology study and diagnostic system development, we could detect porcine RVC by reverse transcriptase PCR (RT-PCR) analyses from 60 diarrheal disease porcine stool samples. VP6 full length RT-PCR product (CA-2 RVC, 1352 bp) was cloned and compared the nucleotide and deduced amino acid sequences with those of previously reported other porcine, human, and bovine rotavirus group A, B and C strains. Analyses data showed >82% homology on the nucleotide sequences and >90% homology on the deduced amino acid sequences with other RVCs. Recombinant baculovirus was prepared with cloned PCR product corresponding to VP6 coding sequence (CDS) (position 22~1206) into BaculoDirect(TM) C-term linear DNA, and used for the transfection of insect cells. The polyclonal antibody was produced from mice with purified recombinant VP6 and confirmed with western blot. Both of VP6 antigen and antibody, are useful for the development of rapid diagnostic system against RVC.
