6 research outputs found
Chromobacterium violaceum in Siblings, Brazil
Chromobacterium violaceum, a saprophyte bacterium found commonly in soil and water in tropical and subtropical climates, is a rare cause of severe, often fatal, human disease. We report 1 confirmed and 2 suspected cases of C. violaceum septicemia, with 2 fatalities, in siblings after recreational exposure in northeastern Brazil
Cromobacteriose em IlhĂ©us, Bahia: investigação epidemiolĂłgica clĂnica e laboratorial
Em abril/2004, um grupo de pessoas realizou passeio a um sĂtio em cidade no baixo sul da Bahia e em seguida trĂŞs adolescentes de uma mesma famĂlia apresentaram septicemia grave com Ăłbito de dois destes. Objetivando identificar o evento, o Serviço de Vigilância procedeu Ă investigação epidemiolĂłgica, clĂnica, laboratorial e ambiental, identificando a Chromobacterium violaceum em material biolĂłgico de um dos pacientes que evoluĂram para Ăłbito e na água e solo do local do passeio. Esta Ă© o primeira descrição desta doença na Bahia
Community-based monitoring of diarrhea in urban Brazilian children: incidence and associated pathogens.
Community-based monitoring was conducted in order to investigate the occurrence of diarrhea in 'sentinel areas' of Salvador, Brazil, and to establish a preliminary profile of the most common pathogens present in children's diarrhea by screening stool samples. This report describes the results obtained from twice weekly home visits to identify and follow diarrhea episodes and testing of carer-requested stool sample collection over a 6-month period. Participants were selected from a large longitudinal study in 21 areas representing the city's poorer socioeconomic and sanitary conditions. Fecal samples were examined for the presence of pathogenic bacteria, viruses and protozoa. The mean incidence of diarrhea was 4.97 episodes per child-year, and longitudinal prevalence was 13.6 days per child-year (3.7%). Pathogens were found in 44% of the fecal samples examined. Bacteria were the most frequently encountered pathogens (isolated in 22% of samples), followed by protozoa (19.5%) and viruses (16%). Viral and bacterial pathogens were associated with episodes of severe diarrhea, while viral and protozoan pathogens were associated with longer episodes. The study demonstrated the importance of a public health monitoring system based on 'sentinel areas'