Acute gastroenteritis is a diarrheal disease of rapid onset.
Viruses are one of the common causes of gastroenteritis.
Rotavirus, enteric adenovirus serotypes 40 & 41, astrovirus and calicivirus (eg "Norwalk-like" virus) are the established viral agents causing gastroenteritis.
Rotavirus is the most common pathogen causing diarrhea in patients 3-24 months old.
Patients <3 months old are protected by maternal rotavirus antibodies that are passed transplacentally and possibly by breastfeeding.
Transmission is through fecal-oral route.
Incubation period may vary from 1-10 days depending on the causative agent.
A twice-daily dose of a probiotic product containing Lactobacillus rhamnosus (L. rhamnosus) R0011 and Lactobacillus helveticus (L. helveticus) R0052 for 5 days did little to prevent subsequent moderate-to-severe gastroenteritis episodes in children visiting the emergency department (ED) for acute gastroenteritis, results of the PERC PROGUT* trial showed.
Parenteral antibiotic therapy duration for bacteraemic urinary tract infection (UTI) in young infants may be safely shortened, according to a recent study showing that recurrence and readmission or emergency department revisitation rates are comparable between a ≤7-day and a longer therapy course.