A person has died in Townsville of melioidosis, which is caused by bacteria from floodwater,
There were also two more confirmed cases of the infectious disease, rising the number of cases to 10 by Tuesday.
Townsville Public Health Unit doctor Julie Mudd said they were expecting to see increasing numbers of a range of infections and were proactively testing for them.
"Melioidosis and many infections that stem from flooding can more severely impact people who are unwell or elderly or have existing chronic conditions," she said.
"We are asking the community to check on their neighbours, it is important.
"Check in on the elderly, sick or disabled and if they are unwell or have a fever call a doctor or an ambulance.
"If these people need help with the clean-up they shouldn’t be doing it themselves they should be asking for help from the SES or council."
Dr Mudd said floodwater was heavily contaminated with dirt and bacteria.
"The vital public health message has been to ensure flood water doesn’t get into your body through cuts and scratches," she said.
"The key public health message has been for people to wear gloves and shoes during the clean-up to prevent infection."
Interstate road trains carrying hay continue to arrive in north-west Queensland as aviation fuel supplies flown in by the military give a glimmer of hope to farmers.
Deputy Premier Jackie Trad said there had been 14,600 insurance claims worth $175 million lodged in Queensland following the flood.
There have been $5.5 million in emergency hardship payments made, 6800 assessments done with 1800 homes damaged by floods, while 55 schools have reopened.