Seasonal Variation of Enteropathogens in Infants and Preschoolers With Acute Diarrhea in Western Mexico

Abstract

The present study estimates the prevalence of some enteropathogens in infants and preschoolers with acute diarrhea. From 2006 to 2007, 5459 consecutive stool samples were evaluated. Cryptosporidium parvum was the parasite identified with the higher frequency (5.1%), followed by Giardia lamblia (1.2%). Campylobacter jejuni was isolated in 858 cases (15.7%) and was the most frequent enteropathogen overall. The rates of C parvum, Shigella, and Salmonella were higher in the summer. Rotavirus had the expected winter peak and it was the third enteropathogen because of its frequency. Overall frequency of stool-reducing substances was 15.6% and was associated with a rotavirus-positive test.

Global Epidemiology of Campylobacter Infection

“…In Mexico, C. jejuni was the most common cause of acute gastroenteritis in infants and preschoolers in 2006 and 2007 (isolated in 15.7% of 5,459 cases) (40). Campylobacteriosis is also very common in children in Guatemala, with incidence rates of 185.5 to 1,288.8 per 100,000 children (41).…”

Prevalence of Bacterial Agents in Children with Acute Gastroenteritis in the Pediatric Emergency Department of Ege University School of Medicine

“…This can be associated with food consumption in restaurants because the most common sources of infection are raw or undercooked meat, particularly poultry products. Contact with pets may cause infection, and outbreaks can be seen with the usage of untreated water and unpasteurized milk (11,12). As in our region, increasing temperatures are more suitable for the survival of Campylobacter.…”

“…C. jejuni (15.7%) was the most common enteropathogen in infants and preschoolers in Western Mexico in the study by Larrosa-Haro et al They reported higher summer rates of Salmonella spp., Shigella spp., and Campylobacter spp. (12).…”

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“…Орґанізм людини також підпорядкований складній системі біоритмів -від короткотривалих на молекулярному рівні до багаторічних, зумовлених сонячною активністю. Циклічні варіації характерні не тільки для фізіолоґічних процесів, а й для захво рювань [9][10][11]. Один із найпоширеніших синдромів у педіатрії -стенозувальний ларин ґо трахеїт (СЛТ), у ґенезі якого провідна роль належить вірусам, також характеризується певними сезонними ритмами [5,6,8,13].…”