Publications by authors named "L Gutierrez-Cogco"
Street-vendors in Mexico City provide ready-to-eat food to a high proportion of the inhabitants. Nevertheless, their microbiological status, general hygienic and trading practices are not well known. During spring and summer 2000, five tianguis (open markets) were visited and 48 vendors in 48 stalls interviewed.
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- Data from a laboratory in Mexico (1995-2000) revealed a significant rise in DEN-3 dengue virus circulation, with Aedes aegypti as the main vector and increasing importance of leptospirosis as a differential diagnosis for dengue.
- Several pathogens like rotavirus, bacteria such as Shigella, Salmonella, and Vibrio cholerae were tracked for seasonal distribution and outbreak patterns, while cholera incidents were monitored over the past decade.
- The emergence of drug-resistant strains of Mycobacterium tuberculosis and the necessity for Chagas disease screening in blood banks demonstrated rising public health challenges, alongside the promotion of iodized salt to combat low iodine levels in children's urine across various Mexican states.
Background: Child day-care centers (DCC) have become common in many lower and middle income countries, presenting new problems that may differ from those of DCC in more developed countries. Diarrhea is a common problem in DCC in the United States, but information on the prevalence of diarrhea or specific enteropathogens among children in DCC in tropical and developing countries is limited.
Methods: Because of preliminary data from newborns and DCC attendees in Mérida, Mexico, with high rates of Salmonella infection, we conducted a 12-month longitudinal surveillance study of enteropathogens in two Mérida DCC.
Cholera is caused only by O1 and O139 Vibrio cholerae strains. For diagnosis, 3 working days are needed for bacterial isolation from human feces and for biochemical characterization. Here we describe the purification of bacterial outer membrane proteins (OMP) from V.
View Article and Find Full Text PDFObjective: To identify the different Salmonella strain serotypes isolated at public and private laboratories in Mexico and at the Institute for Epidemiologic Diagnosis and Referral (InDRE).
Material And Methods: A total of 24,394 Salmonella strains collected from 1972 to 1999 in public and private health laboratories of Mexico were analyzed with the Kauffmann-White method, using antisera produced by InDRE, according to Centers for Disease Control and Prevention (CDC, Atlanta, GA) standards; 15,843 (64.9%) samples were from human sources and 8,551 (35.