RESUMO
Of 150 acute diarrhoea paediatric cases admitted to the General Hospital Augustín O'Horán in Mérida, Yucatán, México between January 1986 and December 1986, human rotavirus was detected in the faeces of 48 (32%) either as the sole aetiological agent or in association with other viruses. Adenovirus was detected in faeces of 18 (12%) patients. Rotavirus of the long pattern type (antigenic subgroup II) predominated. Children aged 7 to 12 months were most commonly infected. Rotavirus was detected throughout the year, whereas adenovirus was detected between January and September only. Clinical features of patients with rotavirus and adenovirus infections are compared.
Assuntos
Infecções por Adenoviridae/epidemiologia , Infecções por Adenovirus Humanos/epidemiologia , Diarreia Infantil/microbiologia , Infecções por Rotavirus/epidemiologia , Infecções por Adenovirus Humanos/microbiologia , Adenovírus Humanos/isolamento & purificação , Diarreia Infantil/epidemiologia , Ensaio de Imunoadsorção Enzimática , Fezes/microbiologia , Feminino , Hospitais Urbanos , Humanos , Lactente , Recém-Nascido , Masculino , México/epidemiologia , Estudos Prospectivos , Rotavirus/isolamento & purificação , Infecções por Rotavirus/microbiologiaRESUMO
A one year study was performed in patients hospitalized by gastroenteritis. The purpose of this study was to determine the rate of gastroenteritis by rotavirus, as well as which subgroups and electropherotypes are the prevailing ones. Electrophoresis technique in polyacrylamide gel was used to detect ribonucleic acid of rotavirus directly obtained from feces. Results indicated that rotavirus was the cause of gastroenteritis in 28.8% of the patients studied; prevailing subgroup II. Four electropherotypes of 34 virus isolated were detected, unlike other countries where have been isolated 19 virus.
Assuntos
Gastroenterite/microbiologia , Infecções por Rotavirus/complicações , Rotavirus/classificação , Pré-Escolar , Eletroforese em Gel de Poliacrilamida , Gastroenterite/epidemiologia , Hospitalização , Humanos , Lactente , Recém-Nascido , México , RNA Viral/análise , Rotavirus/genética , Estações do AnoRESUMO
To determine whether a low preference for human blood by Triatoma dimidiata maculipennis Stal, 1859, the only known vector of Chagas' disease in Yucatan, Mexico, would account for the low prevalence of antibodies to Trypanosoma cruzi in man in the area, the intestinal contents of 924 bugs were tested against antisera to blood antigens of chicken, opossum, dog, bat, monkey, pig, goat, rabbit, horse, human, rat, ox, cat, and armadillo. Although the chicken was the primary host, man was fed upon frequently; thus, the hypothesis was rejected. Other explanations must be found for the relative lack of antibodies against T. cruzi in humans in Yucatan.