An outbreak of severe infections with community-acquired MRSA carrying the Panton-Valentine leukocidin following vaccination.

Background: Infections with community-acquired methicillin-resistant Staphylococcus aureus (CA-MRSA) are emerging worldwide. We investigated an outbreak of severe CA-MRSA infections in children following out-patient vaccination.

Methods And Findings: We carried out a field investigation after adverse events following immunization (AEFI) were reported.

Diarrhea caused by enterotoxigenic Bacteroides fragilis in children less than 5 years of age in Hanoi, Vietnam.

Enterotoxigenic Bacteroides fragilis (ETBF) are considered as an emerging enteropathogen causing diarrhea in children. Eight hundred and thirty-six (836) children less than 5 years of age including 587 children with diarrhea and 249 age-matched controls were involved in the study. Within the group of children with diarrhea, 7.

Etiology and epidemiology of diarrhea in children in Hanoi, Vietnam.

Objectives: This paper provides a preliminary picture of diarrhea with regards to etiology, clinical symptoms, and some related epidemiologic factors in children less than five years of age living in Hanoi, Vietnam.

Methods: The study population included 587 children with diarrhea and 249 age-matched healthy controls. The identification of pathogens was carried out by the conventional methods in combination with ELISA, immunoseparation, and PCR.

HIV infection and risk characteristics among female sex workers in Hanoi, Vietnam.

The prevalence of HIV/sexually transmitted diseases (STDs) was determined, the risk characteristics examined, and factors associated with HIV infection identified among noninstitutionalized female sex workers (FSWs), using a cross-sectional survey with 2-stage cluster sampling. Four hundred FSWs were interviewed face to face using a structured questionnaire and tested for HIV, syphilis, Chlamydia infection, and gonorrhea. HIV seroprevalence was 12%, syphilis 17% (using the treponemal pallidum hemagglutination assay), Chlamydia infection 3.

Distribution of genotype/subtype and mutational spectra of the surface gene of hepatitis B virus circulating in Hanoi, Vietnam.

In order to ascertain the molecular epidemiological features and mutational spectra of hepatitis B virus (HBV) in Hanoi, Vietnam, direct sequencing of the 219-nucleotide fragment of the surface (S) gene of HBV from the sera of 40 patients mostly with chronic hepatitis were carried out. The samples were classified into genotypes by phylogenetic and genotype-specific analysis, and subtypes by the deduced amino acid sequences. The results showed that genotype B with ayw1 was predominant genotype/subtype (63%), followed by genotype C with adr (18%).

Detection and characterization of diarrheagenic Escherichia coli from young children in Hanoi, Vietnam.

Diarrhea continues to be one of the most common causes of morbidity and mortality among infants and children in developing countries. Escherichia coli is an emerging agent among pathogens that cause diarrhea. The development of a highly applicable technique for the detection of different categories of diarrheagenic E.

Diarrhea caused by rotavirus in children less than 5 years of age in Hanoi, Vietnam.

Group A rotaviruses are the major cause of diarrhea in young children worldwide. From March 2001 to April 2002, 836 children less than 5 years of age were investigated in Hanoi, Vietnam. This included 587 children with diarrhea and 249 age-matched controls.