Health officials in Tonga said a case of typhoid fever has been found in Veitongo.
The authority has asked the public to follow good hygiene rules, including ensuring food and drinking water are safe and clean for consumption after a four year old girl was diagnosed with the becteria.
Radio Tonga report said public activities in the town such as social gatherings, feasting and drinking kava at kava clubs are restricted until May 29.
Typhoid fever is a life-threatening illness caused by the bacterium Salmonella Typhi.