Cholera risk in Hangzhou

Cholera Risk Prevention Guide for Hangzhou

Cholera is an acute diarrheal disease caused by the bacterium Vibrio cholerae. It spreads through contaminated water and food. While Hangzhou has modern sanitation infrastructure, a risk score of 55/100 means vigilance is still important, especially during warmer months.

Local risk factors in Hangzhou include seasonal flooding that can overwhelm drainage systems, street food vendors near tourist areas like West Lake where hygiene standards vary, raw seafood served in local restaurants, and crowded public spaces during festivals when sanitation may be temporarily strained.

Here are practical steps to protect yourself:

Treat your water. Drink only bottled, boiled, or properly filtered water. Avoid ice from unknown sources, including shaved ice drinks sold by street vendors near tourist attractions. When ordering bottled water, check that the seal is intact.

Be cautious with seafood. Hangzhou cuisine features river and lake seafood. Choose restaurants with visible hygiene ratings. Avoid raw shellfish and undercooked freshwater fish, especially from small roadside stalls near the Qiantang River area.

Practice hand hygiene consistently. Carry alcohol-based hand sanitizer and use it before eating, especially when visiting crowded markets like Wushan Night Market. Wash hands with soap after using public restrooms in older buildings or public parks.

Peel it, cook it, or avoid it. Raw fruits and vegetables washed in local water can carry risk. Peel fruits yourself or eat only cooked vegetables. Be wary of pre-cut fruit sold by street vendors near West Lake and Lingyin Temple.

Know the warning signs. Seek medical attention immediately if you experience sudden watery diarrhea. Hangzhou has quality hospitals, including the First Affiliated Hospital of Zhejiang University, where treatment is readily available.

Staying informed and practicing these habits will significantly reduce your risk while you enjoy everything Hangzhou has to offer.