South Florida residents have been warned by Health officials that mosquitoes carrying dengue fever can breed in a few ounces of water, even indoors.

The South Florida Sun-Sentinel reported on Friday that Ed Bradford, head of mosquito control in Palm Beach County, said he found Aedes aegypti breeding in one family's bathroom.

Bradford said, "They were in the Waterpik. The family hadn't used it in a while, I guess, and there was a little water left in it."

The mosquitoes turned up under the water dispenser on a refrigerator, Evaristo Miqueli said in Broward County.

At least 46 people have been infected with dengue fever in Key West in the past 10 months, the first outbreak of the disease in the continental United States in more than 60 years. While all the cases so far have been mild, the disease can be fatal.

According to experts, Aedes aegypti can be trickier to deal with than other mosquitoes, including the ones that carry encephalitis, malaria and West Nile.

It has also been reported that those species tend to bite at night and are most active after heavy rains, while dengue mosquitoes bite during the day and live in and around houses. (With Inputs from Agencies)