Dengue and most common doubts

There are currently 5 types of dengue. The last, type 5 (DENV-5), was identified in 2007 in Malaysia, in Asia. All 5 types of dengue cause the same symptoms, including high fever, headache, pain behind the eyes, and extreme tiredness.


The risk of contracting dengue more than once is due to the fact that the person has already suffered from dengue before and has now been infected with another type of dengue, which determines a higher risk of developing dengue hemorrhagic fever. Dengue hemorrhagic fever is related to the exaggerated reaction of the body to the virus, so a second exposure is more serious, and can lead to internal bleeding and cause death if treatment is not received early.
Some common doubts related to the types of dengue are: 

        What are the differences between the types of dengue?

All types of dengue are caused by the same virus, however, there are 5 small variations of this virus. These differences are so small that they cause the same disease, with the same symptoms and the same forms of treatment. However, it is true that type 3 (DENV-3) is more virulent, which means that it causes more severe symptoms than the others.

        Are the symptoms of dengue type 1, 2 and 3 different?

No. The symptoms of dengue are always the same, but whenever the person gets dengue more than once, the symptoms become more intense because there is a risk of dengue hemorrhagic fever. Therefore, all people must collaborate to avoid the reproduction of the dengue mosquito, avoiding all sources of stagnant water.


Can I have dengue more than once?

Yes. Each person can suffer from dengue up to 4 times in their lifetime, because each type of dengue, DENV-1, DENV-2, DENV-3, DENV-4 and DENV-5, is a different virus, so When a person is infected with type 1, they develop immunity against this specific virus, but if they are bitten by a mosquito that transmits the dengue type 2 virus, they will develop the disease again and in this case, the risk of developing dengue hemorrhagic is greater.

Can I have 2 types of dengue at the same time?

It would not be impossible, but it is highly unlikely, since it would be necessary for 3 different types of dengue to be circulating in the same region, which is extremely rare, so no cases like this have been reported.

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