Viral intestinal infections

A 9-month-old infant presents with acute onset of repeated vomiting, profuse watery diarrhea without blood, fever 38.2°C, and signs of moderate dehydration. Two siblings have similar symptoms. What is the most likely diagnosis?

The main pathogenetic mechanism of diarrhea in rotavirus infection is:



 

A 4-year-old child has fever, pharyngitis, conjunctivitis, and mild diarrhea lasting more than 7–10 days. What is the most likely etiologic agent?



 

The most informative laboratory method to confirm adenovirus infection is:


 

8. Which complication is most commonly associated with adenoviral infection in children?



 

An outbreak of acute gastroenteritis occurs among university students after a banquet. Incubation period is 24–36 hours. The predominant symptom is repeated vomiting; diarrhea is short-lived. What is the most likely causative agent?



D. Astrovirus

Which epidemiological feature is characteristic of norovirus infection?
 

A 3-year-old unvaccinated child develops acute onset of asymmetric flaccid paralysis of the lower limbs following a short febrile illness, without sensory loss. What is the most likely diagnosis?
 

The main mechanism of nervous system damage in poliomyelitis is:
 

A 10-month-old infant presents with acute watery diarrhea, repeated vomiting, fever, and moderate dehydration. Stool is negative for blood and leukocytes. Which feature most strongly favors Rotavirus over Norovirus?
 

A school-aged child has fever, sore throat, conjunctivitis, and mild diarrhea lasting 8–10 days. Which diagnosis is most likely?
 

Several adults develop acute vomiting and diarrhea within 24–36 hours after attending a wedding. Symptoms resolve within 48 hours. Which pathogen is most consistent with this epidemiological pattern?
 

A 4-year-old unvaccinated child develops acute asymmetric flaccid paralysis of one lower limb following a mild febrile illness. Sensory function is preserved. Which diagnosis should be prioritized?
 

Which clinical combination best helps differentiate Adenovirus gastroenteritis from rotavirus infection in children?