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Tens of thousands of travelers attending Carnival in Brazil are being urged to get vaccinated against yellow fever.
The World Health Organization said on Tuesday that the whole of Sao Paulo state, which includes Brazil's largest city, Sao Paulo, should be considered at risk for the disease.
Brazil - Health - Ministry - Recommendation - Weeks
Brazil's Health Ministry tried to downplay to the recommendation, which comes just weeks before Carnival when scores of tourists descend on Brazil for the annual festivities.
But health officials insist yellow fever, which is transmitted by infected mosquitoes, could become a large epidemic if it hits even one person during the street parades.
Carnival - Brazil - Place - February - February
Carnival of Brazil, which takes place February 9 through February 14, is an annual week-long celebration that marks the beginning of Lent, the 40-day period before Easter.
Deputy Health Minister Antonio Carlos Nardi said Carnival celebrations in February were in urban areas and that visitors would not be at risk if they stayed in cities.
Nardi - Number - Cases - Year - Outbreak
Nardi said the number of cases had risen again this year but that there was no outbreak of yellow fever in the country.
'We are not at this time speaking of an outbreak but an increase in the number of cases in the states of Sao Paulo, Rio de Janeiro and Bahia,' Nardi told reporters.
Fever - Disease - Mosquitoes - Regions - Killer
Yellow fever is a viral disease transmitted by mosquitoes in tropical regions and is still a major killer in Africa. It...
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