Objectives: To compare two surveys across seven states for the prevalence of dental caries among Mexican schoolchildren.
Study Design: Analysis of two cross-sectional surveys: Schoolchildren from 6 to 10 years of age were examined in the 1988-1989 survey and 6- to 10-year-old and 12-year-old students were included in the 1998-2001 survey. The baseline data of seven states were available for analysis.
In 1992, a new type of influenza virus appeared in Southeast Asia. This new strain has caused to date, more than 120 cases and over 60 deaths in Cambodia,Vietnam, Indonesia and Thailand. This situation is seen by the experts as the possible genesis of a new influenza pandemic with the corresponding negative effects on the health of the population, international commerce and world economy.
View Article and Find Full Text PDFAim: To analyze changes in prevalence and seasonality of diarrhea morbidity and mortality and to evaluate the impact of rotavirus disease among Mexican children younger than 5 years old.
Methods: Diarrhea surveillance was performed from 1990 to 2002. Rotavirus testing was performed on stool specimens from 1996 to 2002.
In Mexico, measles occurred in a cyclical endemic-epidemic pattern until the early 1970s. Beginning in 1973, routine vaccination augmented by mass vaccination campaigns led to a decrease in the incidence of measles until the 1989-1990 regional pandemic, when the measles attack rate rose to 80 cases per 100000, resulting in 5899 deaths. Since the pandemic, measles elimination efforts in Mexico have resulted in increasing coverage to >95% among children aged 1-6 years with 2 doses of either measles or measles-mumps-rubella vaccine since 1996 and in coverage of 97.
View Article and Find Full Text PDFIn early February 2003, the World Health Organization (WHO) began receiving reports of patients with a syndrome characterized by an atypical pneumonia with rapid progression to respiratory failure without an identified cause despite extensive diagnostic workups. Most of these reports pointed out that the outbreak started in Southern China, specifically in the Guandong Province. The initial outbreak in South East Asia has already spread to other Regions in Asia, Europe, North and South America, and South Africa.
View Article and Find Full Text PDFIn 1997, the Centers for Disease Control and Prevention, the Mexican Secretariat of Health, and border health officials began the development of the Border Infectious Disease Surveillance (BIDS) project, a surveillance system for infectious diseases along the U.S.-Mexico border.
View Article and Find Full Text PDF