Special immunizations are not officially required to travel to Negombo. Moreover, the resort is considered to be free of malaria outbreaks, making it possible to forgo these vaccinations before your trip.
However, due to the characteristics of the local cuisine and hygiene practices, some travelers may consider additional vaccinations as a precautionary measure. In such cases, it is advisable to consider tetanus, polio, and hepatitis A and B vaccinations.
For those planning to visit non-tourist areas, while there are no strict requirements, it is recommended to consider typhus vaccination among other precautions.