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Warning about the possible extension of two viruses that transmit mosquitoes – Society



Dengga, Zica, Chikungunya, Yellow fever; and now, Mayaro and Oropouche. These are mosquito-transmitted diseases, although not all are a direct threat to Argentina. When Aedes aegypti is installed in the area, alerts are turned on.

The Scientific Director of the Center for Tropical Medicine, Faculty of Medicine, UNR, Antonio Montero, monitors the progress of these two viruses that were baptized on the island of Trinidad and Tobago, where they were discovered in 1950. : "We see on the map the progress of the two epidemics, as we did with Chikungunya and yellow fever, and it is obvious that they are agents that are advancing and putting the population at risk," he said.

In view of the recent detection of cases of Mayaro fever through laboratory surveillance in previously unreported areas, the Pan American Health Organization (WHO) launched the first epidemiological signal last May and encouraged Member States to develop and maintain capacity to detect this disease, including laboratory diagnosis and awareness of health professionals.

"It does not seem exaggerated to talk about a warning about these two viruses because the vector is present, it is a warning that we must take care of the yellow fever, the dengue (of which the four serotypes are already circulating in Argentina and hemorrhagic dengue will emerge) . ) and these two viruses that we do not really know their morbidity potential, their ability to harm, "says Montero, an infectious disease specialist and internist.

Although in the studied outbreaks, the affected vector is the Haemagogus mosquito, which is from wild habits, has a precedent that Aedes aegyptis caused Mayaro fever in urban areas, the newspaper writes. Seaside,

Characteristics of diseases
Maya fever in the early days shows a non-specific clinical picture similar to that of dengue and chikungunya: fever, headache, myalgia; (mainly in the chest, legs, back, hands and less often on the face), abdominal pain and in some cases, haemorrhagic events . "Brazil is believed to be responsible for most of the febrile cases that happen in the jungle, but it has made city epidemics in several cities, which clearly demonstrates its ability to be transmitted by Aedes aegyptis," said the specialist.

Oropuche is another song, "he warned, for although the clinical picture" is indistinguishable, the problem is that it is well known that it is a neurotrophic virus that can cause meningitis to recall the Zec's predecessor. " these two viruses wonder if they will not do the same because when we started to know Zica, we all thought it was a mild illness, but when the number of cases increased and was found to cause fetal malformations, microcephaly and embryonic death and Fetalen , we began to see that the virus was serious and posed a threat to public health, "said Montero, the doubts that arise in the Center for Tropical Medicine.

In Oropouche, "there is a huge amount of attack, this is its big drawback: when it comes to a population, it affects 50% at the same time, which means that they all are resistant to the disease for a second episode."

The cycle of transmission is the same as ever: the mosquito bites a person in the viraemic period, then the infected mosquito bites another person and transmits the disease.

The good news is that Aedes has two shortcomings in transmitting the Mayaro virus, Montero said: one is that viremia (the time the virus is in the blood) is very short, three days the Commander must bite there to infect, otherwise it is not infected. The other is that viremia is very low, the infected virus has a low titer and this makes the transmission of the disease difficult. "But (and here Montero presents the terrible" but ") it can change a lot if there is a small mutation in the virus that makes it adapt to the new host, because it also affects the apes in the jungle.

prevention

The solution? "It's always the fight against mosquitoes," he says. And the measures taken in Argentina are "adequate": for example, the blockade of the dengue area; fumigation, border control. The problem is called neoliberalism, as neo-liberal policies are poorer and displaced by a significant number of people from their places of origin because they can not find a job and settle in remote areas and coastal neighborhoods. Against the mosquito is descacharrado, and villas miserias are giant pots, it is not possible to descacharrizar city, "said Montero.

The big solution is what "can not be applied in Latin America and what, therefore, the authorities do not want to hear: it is called rational urbanization, that is, cities without poor houses, without ditches, without wells, without dwellings." can when constant water gathers every time it rains when we have cities like people where people have access to running water in decent conditions we will not have mosquitoes. "


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