There’s a Virus That Could Give Us Immunity Against COVID-19

There’s a Virus That Could Give Us Immunity Against COVID-19

There’s a new study that analyzes the coronavirus outbreak in Brazil. It has found a link between the spread of the virus and some of the past outbreaks of dengue fever. This suggests that exposure to mosquito-transmitted illness may actually come with some kind of immunity against COVID-19.

This study will be published by Miguel Nicolelis, who is a professor at Duke University. He compared the coronavirus cases with the spread of dengue 2019 and 2020.


The places that had lower coronavirus infection rates and slower case growth were actually those places that had to deal with rougher dengue outbreaks this year.

The study shows: “This striking finding raises the intriguing possibility of immunological cross-reactivity between dengue’s Flavivirus serotypes and SARS-CoV-2. If proven correct, this hypothesis could mean that dengue infection or immunization with an efficacious and safe dengue vaccine could produce some level of immunological protection”. According to Nicolelis, the results are helpful because all of the studies have shown that people that have dengue antibodies can test positive for COVID-19 – that being a false positive – even if they were never infected with the virus.


With regard to this situation, Nicolelis said that there is an immunological interaction between these two viruses that we didn’t really expect to happen because they come from two different families.


The study shows the important relationship between the lower incidence, mortality, and growth rate of COVID-19 in Brazil, where they found out that the levels of antibodies to dengue fever were higher. If we are to compare it to the other countries around the world, Brazil has the world’s third-highest total of infections with the new virus. There are 4.4 million cases. The other two places are filled by the United States and India.



Anna Daniels

Anna is an avid blogger with an educational background in medicine and mental health. She is a generalist with many other interests including nutrition, women's health, astronomy and photography. In her free time from work and writing, Anna enjoys nature walks, reading, and listening to jazz and classical music.

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