The Florida Keys Mosquito Control District has activated its mosquito-borne disease response plan and intensified mosquito control operations in Key Largo and Upper Matecumbe Key, the organization announced Monday.

U.S. health officials are warning doctors to be alert for dengue cases as the tropical disease breaks international records.

Dengue is surging across the Americas early this year from Puerto Rico to Brazil.

Local public health officials in Rio de Janeiro have been scouring the city's neighborhoods and even its junkyards for signs of standing water where mosquitoes can lay their eggs.

Rio de Janeiro city authorities have declared a public health emergency in the city because of an outbreak of mosquito-borne dengue fever.

Dengue is sweeping across the Western Hemisphere in numbers not seen since record-keeping began in 1980 as experts warn that rising temperatures and rapid urbanization are accelerating the pace of infections.

Authorities say dengue fever is on the rise in Mali, posing a new threat to the West African nation struggling with extremist attacks and political turbulence.

The Florida Department of Health reported two cases of dengue fever on Friday in Broward County.

The Florida Department of Health in Miami-Dade County has issued a mosquito-borne illness advisory after the first local case of dengue infection this year has been confirmed.

Officials say infections following monsoon rains have led to a fever outbreak in India’s northern Uttar Pradesh state, killing at least 114 people in the past three weeks.

PEMBROKE PARK, Fla. – The Florida Keys are weeks away from a mosquito season like it has never seen. The plan to release genetically modified mosquitoes is meant to eventually stop mosquito breeding, and the diseases they spread, like Zika and Dengue. Barry Wray is the Executive Director of the Florida Keys Environmental Coalition and a critic of the plan, set to launch next month. He joined This Week in South Florida hosts Glenna Milberg and Michael Putney, and their discussion can be seen at the top of this page. RELATED LINKDespite opposition, Florida Keys moves forward with genetically modified mosquitoes

KEY LARGO, Fla. Four cases of Dengue fever have recently been confirmed in the Florida Keys, bringing the total number of cases reported this year to 26, health officials said. Most of the Dengue fever cases are in a two-mile (3,218-meter) area of Key Largo, the Miami Herald reported. In 2010, 66 cases of locally acquired Dengue fever in Florida were associated with Key West, health officials said. Dengue fever often presents flu-like symptoms with severe muscle aches and pain, fever and a rash. Health officials said this is the same mosquito that carries the Zika virus, which has symptoms similar to Dengue.

James Gathany/CDCMIAMI - Miami-Dade County was placed under a mosquito-borne illness alert Friday following cases of dengue fever reported in the area. Two cases of locally-transmitted dengue have been confirmed in the county, with both cases appearing to be related to previous local cases. Miami-Dade has reported ten confirmed cases of dengue in the 2019. from garbage cans, house gutters, buckets, pool covers, coolers, toys, flower pots or any other containers where sprinkler or rain water has collected. Discard old tires, drums, bottles, cans, pots and pans, broken appliances and other items that aren't being used.