Over 100 Tsinghua alumni fall ill after dinner gathering; 'norovirus infection the cause'

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Over 100 of Tsinghua alumni fell ill following an off-campus dinner gathering marking the university's anniversary, with the local disease prevention and control department attributing the cause to norovirus infection. 

A recent social media post titled "Letter to All Alumni and Current Faculty and Students" brought attention to the issue. The letter revealed that during Tsinghua University's 113th anniversary celebration from April 26 to 28, alumni from various locations attended the festivities and some dined at the Zui Ai Restaurant located outside the southeast gate of the campus. 

Over a hundred alumni fell ill with food poisoning , including vomiting, diarrhea, fever, abdominal discomfort, fatigue, and muscle soreness after dining at the restaurant. As of May 1, 102 individuals have reported experiencing these symptoms, the letter wrote.

The Haidian District Disease Prevention and Control Center in Beijing on Monday released an investigation report saying it has conducted comprehensive testing on samples collected from the restaurant staff, environment, and food. The results of the epidemiological investigations revealed that some samples tested positive for norovirus, leading to the conclusion that the incident was caused by acute gastroenteritis due to norovirus infection. 

The district disease control center has instructed the restaurant to cease operations, carrying out terminal disinfection, and providing health awareness guidance.

With summer being a high-risk period for gastrointestinal infectious diseases, the disease control center has advised catering enterprises to increase the frequency of daily environmental sanitation and disinfection, enhance staff education on preventing gastrointestinal infectious diseases, and improve health monitoring to ensure a safe dining environment for customers. 

Residents are urged to prioritize food hygiene, avoid consuming untreated water, practice frequent handwashing, use public chopsticks when dining out, and seek medical attention promptly if experiencing gastrointestinal symptoms.