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How dengue is transmitted (and other common doubts)

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The transmission of dengue occurs through the bite of a mosquito Aedes aegypti infected with virus. During the sting, symptoms can appear between 5 and 15 days, with headache, high fever, pain behind the eyes and pain in the body.

Dengue is not contagious, that is to say, it cannot be transmitted from one person to another, and it can also be spread through the consumption of food or water.

Dengue is only transmitted through the bite of a mosquito Aedes aegypti female infected by the dengue virus, so there is no contagion from one person to another. However, when a female mosquito bites a person with dengue, it is possible that she acquires the virus, which can be transmitted to another person.



How is dengue contagious?

The transmission of this disease occurs exclusively through the bite of an infected mosquito. Aedes aegypti It bites a person with dengue, he acquires the virus and can transmit it to other people. Only the infected female mosquitoes are the ones that transmit the disease, that’s why they need blood so that their eggs can mature and thus give continuity to their life cycle.

The dengue mosquito is characterized by having a black color and white lines on its body, head and legs, making it easy to differentiate from other mosquitoes. Find out how to identify the dengue mosquito.

The transmission of dengue occurs with greater ease in the less hot hours of the day, such as early in the morning or late in the afternoon. Asimism, the transmission occurs with greater frequency in more hot areas and with a high humidity, because these are favorable conditions for the development of the huevos, the transformation in the mosquito and, therefore, the propagation of the virus.

Is it possible to get dengue more at once?

However, dengue can be transmitted more than once, because there are 5 types of dengue virus, which are known as DEN-1, DEN-2, DEN-3, DEN-4 and DEN-5, resulting in the development of more or less intense symptoms, in addition to having a greater risk of developing hemorrhagic dengue from the second infection by the dengue virus.



Learn more about the types of dengue.

How to know if you have dengue

To know if you have dengue, it is important to be aware of the symptoms that may appear at a long time, such as high fever, strong and persistent headache, red spots on the skin and pain in the joints. In view of the presence of such symptoms, it is important to go to the hospital or the nearby health center so that the diagnosis can be carried out and the appropriate treatment started. Find out how to recognize the symptoms of dengue.

Aside from evaluating the symptoms, the doctor indicates the realization of tests that help to confirm the diagnosis of dengue, such as serological tests, blood analysis and tourniquet test, also known as lazo test.

See how the diagnosis of dengue is performed.

Online symptom test

To evaluate whether the symptoms presented could indicate dengue, select the following test for those that present:

How to avoid transmission

To prevent the transmission of dengue, it is important to adopt measures that help to prevent the development of the mosquito and, therefore, the illness. Therefore, it is important to take the following precautions:

  • Placing the bottles turned down there;
  • Placing land on the plates of las macetas de las planta;
  • Keeping the tires protected from the rain, you can create the perfect environment for the development of mosquitoes;
  • Always cover the water tank;
  • Avoid keeping ponds of water in the garden;
  • Cover the pools.

Likewise, if you have vacant land with stagnant water, you must inform the authorities so that all the wells can be eliminated. It is also recommended to use protective screens in all the windows and doors to prevent the entry of mosquitoes and, in addition, it is recommended to use repellent daily.

Find out these and other advice in the following video:

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Consult a Doctor | Translated by User2937

Content for educational purposes only

The translator user relied on the following text:

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Disclaimer – (English version>) This content has been prepared based on information from research, additional publications, or the translation/verification work of a volunteer editor of this web council. This is a non-profit service. It is strongly recommended that all details and information published be carefully verified. We never allow medication recommendations, medication package inserts or any medication guidance. We never allow partisan politics as information.

Isenção de responsabilidade – (versão em português): Este conteúdo foi preparado com base em informações de pesquisas, publicações adicionais ou no trabalho de tradução/verificação de um editor voluntário deste conselho web. Este é um serviço sem fins lucrativos. É altamente recomendável que todos os detalhes e informações publicadas sejam verificadas cuidadosamente. Nunca permitimos recomendações de medicamentos, bulas ou qualquer orientação sobre medicamentos. Nunca permitimos a política partidária como base para checagem. Para mais informações, leia nossos termos.

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