“Prof. Iv. Kirov“
Specialized Hospital for Infectious and Parasitic Diseases, Sofia, Bulgaria
Noroviruses are one of the most common etiologic agents, that
cause outbreaks of diarrheal diseases especially in closed groups. Our study
includes a group of 22 students from the Professional School of Computer
Technology and Systems in Pravets - Bulgaria, that experienced a sudden onset of
severe gastroenteritis. Their average age is 16 years in the range 14-18 years,
17 boys (77%) and 5 girls (23%).
The onset was acute with chill (in all patients), fever –
subfebrile (tº up to 38◦ C) were 12 (54%) and febrile - 3 (13%) patients.
Vomiting is present in all patients, while in 17 (77%) it is accompanied by
nausea. Abdominal pains are present in 11 people (50%). Diarrhea is present in
7 persons (31%). The microbiological diagnosis includes examination of a stool
sample for intestinal pathogenic bacteria and viruses, as in 9 (41%) norovirus infection
was proved by PCR. The therapeutic approach includes oral and parenteral
rehydration, symptomatic agents and diet.
Infections with noroviruses should always be suggest in
cases of sudden onset of gastroenteritis with a group character.