The most common dengue virus in the world is found in Brazil

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Scientists have discovered, for the first time, a cosmopolitan genotype of the dengue serotype 2 virus in Brazil. The genealogy, which is widespread throughout the world and now in Asia, the Middle East and Africa, has not been found in the Brazilian region. The genotype was identified in the Aparecida de Goiânia (GO).

The information was released today (5) on the Oswaldo Cruz Foundation (Fiocruz) portal. The diagnosis of the dengue genotype was carried out by Instituto Oswaldo Cruz (IOC / Fiocruz) in collaboration with the Central Public Health Laboratory of Goiás (Lacen-GO) and was released in February as an example of dengue fever since last November. last year.

According to Fiocruz, for scientists, the arrival of the virus in Brazil is a cause for concern, because there is a possibility that it may be more contagious than the Asian-American virus, also called genotype 3 of serotype 2, which is present. circulates in the country.

The disease, however, according to the group, is not responsible for the spread of dengue in Goiás and all indications are that it was diagnosed quickly, which can help control the disease.


This finding represents the second case of the virus in the United States, after an outbreak in Peru in 2019. A study conducted in Brazil shows that the virus is found in two similar cases. Outbreaks reported in Madre de Dios, Peru

However, it is still not possible that the cosmopolitan genotype was introduced in Brazil by neighboring countries. The skepticism is that he came to Asia, by way of travel.

According to Fiocruz, city and state health departments and the Ministry of Health discussed. Researchers have published a paper on the medRxiv preprint platform.

Scientists have pointed out that one of the most important steps in the fight against dengue fever is to remove stagnant water, which could become breeding grounds for Aedes aegypti mosquitoes, which spread the disease. the bearing.

In addition to taking action to prevent dengue fever, scientists have highlighted the importance of strengthening the genomic analysis of the disease to explain the possible causes of the disease. all over the world and have a good understanding of the ways of transmitting the disease in the country.


Analysis of the cosmopolitan genotype of dengue virus was carried out by real-time arbovirus genomic testing project, led by Flavivirus Laboratory of IOC / Fiocruz. Initially, scientists moved to the Central Public Health Laboratories of the state (Lacens) and performed the determination of genomes with devices that could easily carry out genetic linkages.

From 2020, the project also includes the genomic analysis of Sars-CoV-2, which produces covid-19, getting the name of VigECoV-2.

The project involves the Ministry of Health – through the General Coordination of Arboviruses (CGArb) and Public Health Laboratories (CGLab) -, the Pan American Health Organization (PAHO), the Center for Disease Control and Prevention (CDC) and the National Institutes. of Health (NIH), both in the United States.

Location: Brazil Agency

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