Three viruses, dengue, chikungunya and Zika, in Mato Grosso, Brazil

Infected mosquitoes continue to spread dengue fever, chikungunya and Zika viruses across the state. This year, there have been almost 30,000 people infected with dengue fever. Major increases in reported dengue cases occurred in the municipalities of Sinop, Cuiabá, Várzea Grande and Rondonópolis.

Sporadic cases of chikungunya virus infections were also registered in 28 municipalities, for a total of 184 cases.

With respect to Zika virus, approximately 1,600 suspected cases are under investigation.

Visit our Health Library for more information on exposure to and the prevention of Chikungunya Fever, Dengue Fever, and Zika Fever.

Advice For Travellers

The risk of exposure to one of these viruses is variable, but highest for dengue fever. All travellers to areas where these viruses are active can reduce their risk of exposure by taking all necessary precautions to avoid mosquito bites. Many persons with these infections do not seek medical care and are not reported to health authorities. There may be many more cases of these diseases in the community than the reports indicate.

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