Fiji has reported 213 cases of dengue fever and 30 cases of typhoid fever this year.
The Government earlier announced that 14 people had died from leptospirosis this year including a six year old boy.
Health Secretary Dr James Fong also confirmed 179 cases of leptospirosis this year.
Dr Fong said of the typhoid cases, 11 were from the Central Division, 14 in the west and five in the north of the country.
But he said case numbers of typhoid fever were below the expected numbers for this time of year.
"Typhoid fever is typically found in areas that do not have access to clean drinking water such as rural areas and urban informal settlements," Dr Fong said.
"We strongly encourage people who live in these areas, and any other areas without access to clean drinking water, to boil all drinking water.
"We must all also continue to practise basic hygiene measures such as frequently washing hands with soap and water, but especially after visiting the toilet and before eating or preparing food."
Meanwhile, Dr Fong said there's been an increase in dengue cases since the recent heavy rain and floods.
"There have been 213 cases of dengue fever reported, which is within the expected numbers for this time of the year," he said.
Dr Fong urged the public to get rid of potential mosquito breeding places, such as empty containers outside homes that may collect water, including discarded tyres.
"You must also prevent yourself from being bitten by mosquitoes through the use of mosquito screens in your homes, and mosquito repellents," he said.
"The Ministry of Health and Medical Services Communicable Disease Committee has been activated and is assisting the divisional command centres in responding to cases of leptospirosis, typhoid, and dengue fever, including raising awareness and providing refresher training for medical professionals in primary care for early diagnosis and treatment."
Fiji is also battling a third wave of the coronavirus with 94 cases in isolation and the death toll at 823.