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Aedes aegypti mosquito

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The Zika virus is spread by the Aedes aegypti mosquito, which also carries dengue fever and yellow fever.

It was first discovered in Africa in the 1940s but is now spreading in Latin America

Scientists say there is growing evidence of a link to microcephaly that leads to babies being born with small heads.Zika outbreak Americas

The Zika virus can lead to fever and a rash but most people show no symptoms, and there is no known cure.

The only way to fight Zika is to clear stagnant water where mosquitoes breed, and protect against mosquito bites.

Zika was first detected in Uganda in 1947, but has never caused an outbreak on this scale.

Brazil reported the first cases of Zika in South America in May 2015.

Most cases result in no symptoms and it is hard to test for, but WHO officials said between 500,000 and 1.5 million people had been infected in Brazil.

The Zika virus has since spread to more than 20 countries in the region.

According to new figures, more Brazilian babies were born with abnormally small heads to mothers infected with the Zika virus.

There have been 3,893 cases of microcephaly since October, when the authorities first noticed a surge, up from 3,500 in last week’s report.

The Zika virus is transmitted by the bite of the Aedes aegypti mosquito, which also spreads dengue and chikungunya.

Brazil is experiencing the largest known outbreak of Zika.

The Zika virus has already killed five babies in the country, said the health ministry. Another 44 deaths are being investigated to determine if they were caused by Zika.

Last week, the Brazilian Health Minister Marcelo Castro said a new testing kit was being developed to identify quickly the presence of either of the three viruses.

Marcelo Castro also announced extra funds to speed the development of a vaccine for Zika “in record time”.

Photo Wikipedia

Photo Wikipedia

At the moment the only way to fight Zika is to clear standing water where mosquitoes breed.

There has been a sharp rise in the number of cases of Zika in several other Latin American countries.

In Colombia, more than 13,500 cases have been reported.

“We are the second country [in Latin America] after Brazil in the number of reported cases,” said Health Minister Alejandro Gaviria.

He has advised women in the country not to get pregnant for the rest of the outbreak, which he said could last until July.

In Bolivia, the authorities have reported the first case of a pregnant woman diagnosed with Zika.

“She has not travelled outside the country. This is a home-grown case,” Joaquin Monasterio, director of Health Services for the eastern department of Santa Cruz told the AFP news agency.

The US Centers for Disease Control and Prevention (CDC) issued an alert on January 15 advising pregnant women to avoid travelling to Brazil and other Latin American and Caribbean countries where outbreaks of Zika have been registered.

The travel alert applies to Brazil, Colombia, El Salvador, French Guiana, Guatemala, Haiti, Honduras, Martinique, Mexico, Panama, Paraguay, Suriname, Venezuela and Puerto Rico.

Brazil’s health ministry has confirmed a link between a mosquito-borne virus from Africa, Zika Fever, and a high incidence of birth defects.

The fever is behind a spike in cases of micro-encephalitis – an inflammation of the brain contracted in the first months of pregnancy.

It has recorded two adult deaths and 739 cases of the disease, which can stunt the growth of the fetus’ head.

A World Health Organization team arrives in Brazil next week.

The Brazilian ministry said doctors had found Zika virus in the blood and tissue of a baby with micro-encephalitis in the north-eastern state of Ceara.

Photo Wikipedia

Photo Wikipedia

It said it was also the first time in the world that adult deaths from Zika virus had been registered.

Most cases have been in the north-east of Brazil but cases also rapidly appeared in the south-east, in Rio and Sao Paulo.

The first confirmed case of death was of a man in the city of Belem, in Para state, who was being treated for Lupus, a disease of the immune system.

The second case, also in Para, was of a 16-year-old girl who was admitted with suspected Dengue fever but who was found to have died of Zika.

The virus was first detected in Brazil in April and has spread rapidly to 18 states.

It appears relatively harmless at first, causing a rash and a fever for a few days.

However, ministry officials have issued warnings to women to think carefully about getting pregnant at the moment in areas where there are Zika fever cases.

Zika is transmitted by the Aedes aegypti mosquito, also known to carry the yellow fever, dengue and chikungunya viruses.

The Brazilian ministry said Zika had become a serious risk to public health and that Brazil must embark on an emergency program to control the Aedes aegypti mosquito to prevent the virus’ spread.