A local health department identifies 12 cases of hepatitis A (ALT 850 U/L, anti-HAV IgM positive) linked to a restaurant over 10 days. Affected patients present with jaundice, fever (38.5°C), and abdominal pain; no cases involve healthcare workers. Most cases consumed raw shellfish from the same supplier 2 weeks prior. Before testing specific menu items, which of the following is the most appropriate immediate next step to help prevent additional cases?
- A)Wait for culture confirmation before intervening
- B)Close the restaurant temporarily and interview cases about common exposuresGABARITO
- C)Begin a case-control study only after 6 months of follow up
- D)Assume person-to-person spread and take no action on the food source
- E)Publish the names of all infected patients in the newspaper
Explicação
Outbreak investigation requires rapid public health action while data collection proceeds. Temporarily removing the suspected source and interviewing cases about common exposures can both reduce ongoing transmission and clarify the likely origin of the outbrea... Ver explicação completa e trilha adaptativa →