Brunton said paratyphoid, which is similar to typhoid fever, is not common in New Zealand.
Most cases acquire the disease overseas through consuming contaminated water or food.
Over the past five years, a total of nine cases have been reported in Canterbury.
The last case of paratyphoid fever in Canterbury was notified in March.
Only two cases have been reported this year in the region.
Paratyphoid fever is a similar illness to typhoid fever, but its clinical manifestations tend to be milder and its duration shorter.
It is a bacterial infection that can spread throughout the body and often manifests as acute gastroenteritis.
Paratyphoid fever is not as serious as typhoid and is caused by a different bacteria.
Common symptoms of paratyphoid fever include chills, feeling cold and shivery, stomach pain and headache.
