Dengue transmission occurs through a mosquito bite Temples of the Egyptians infected with viruses. After the bite, symptoms may appear between 5 and 15 days, including headache, high fever, pain in the back of the eyes and body pain.
Dengue is not contagious, that is, it cannot be transmitted from person to person, and it cannot be transmitted through the consumption of food or water.
Dengue is transmitted exclusively through the bite of an infected mosquito. The virus can also be passed from humans to mosquitoes, in which the mosquito Temples of the Egyptians When biting a person with dengue, it acquires the virus and can transmit it to other people.
How transmission happens
Dengue transmission occurs through mosquito bites Temples of the Egyptians female infected with the dengue virus, with no person-to-person transmission. Only infected female mosquitoes transmit the disease, because they need blood so that their eggs can mature and continue their life cycle.
The dengue mosquito is characterized by having a black color and white streaks on its body, head and legs, and can be easily differentiated from other mosquitoes. See how to identify the dengue mosquito.
Dengue transmission is easier to occur during cooler times of the day, such as early in the day or late in the afternoon. Furthermore, transmission occurs more frequently in warmer places with high humidity, because these are favorable conditions for the development of eggs, transformation into mosquitoes and, consequently, the spread of the virus.
Can dengue be transmitted more than once?
Yes, dengue can be transmitted more than once, this is because there are 5 types of dengue virus, which are known as DEN-1, DEN-2, DEN-3, DEN-4 and DEN-5, which can result in the development of more or less intense symptoms, in addition to there being a greater risk of developing hemorrhagic dengue from the second infection with the dengue virus. Find out more about the types of dengue.
Is dengue contagious?
No, dengue cannot be passed from person to person. Transmission only occurs through the bite of an infected Aedes aegypti mosquito, as the virus needs the mosquito’s organism to develop and, therefore, be able to cause illness in people.
How to avoid transmission
To prevent the transmission of dengue fever, it is important to adopt measures that help prevent the development of mosquitoes and, consequently, the disease. Therefore, it is important to take the following precautions:
- Turn bottles upside down;
- Place soil in the plant dishes;
- Keep tires protected from rain, as they are the perfect environment for mosquitoes to develop;
- Always cover the water tank;
- Keep the yard free of standing water;
- Cover the pools.
Furthermore, if you have vacant land with standing water in your area, you should inform the city hall so that all puddles with standing water can be eliminated. It is also recommended to use protective screens on all windows and doors, in order to prevent mosquitoes from entering, and it is also recommended to use repellent daily.
How to know if it is dengue
To know if you have dengue fever, it is important to be aware of the symptoms that usually appear over time, such as high fever, strong and persistent headache, red spots or spots on the skin and joint pain. If these symptoms are present, it is important to go to the nearest hospital or emergency room so that a diagnosis can be made and appropriate treatment can be started. Know how to recognize the symptoms of dengue.
In addition to evaluating the symptoms, the doctor recommends carrying out tests that help confirm the diagnosis of dengue, such as serological tests, blood tests and the snare test. See how dengue is diagnosed.
Bibliography
- MINISTRY OF HEALTH. Dengue: symptoms, causes, treatment and prevention. Available at: <https://antigo.saude.gov.br/saude-de-az/dengue>. Accessed on March 9, 2021
