Is dengue fever contagious and how can I prevent it?

Dengue fever is an acute infectious disease caused by the dengue virus, which is mainly transmitted through mosquito bites. The disease is highly contagious, clinically characterized by high fever, rash, bleeding tendency and different degrees of blood poisoning, and severe cases can occur shock, DIC, meningitis, etc.

1. Contagious

1. Source of infection: patients and latent infections are the main sources of infection, among which the proportion of latent infections is larger;

2. Transmission route: mainly transmitted by mosquito bites, including Aedes aegypti and Aedes albopictus;

3. Susceptible population: The population is generally susceptible and can obtain long-lasting immunity after infection.

2. Prevention

1. Control the source of infection: patients with dengue fever should be isolated and treated to avoid contact with healthy people;

2. Cut off the transmission route: eliminate the breeding grounds of adult mosquitoes and larvae, remove stagnant water, and reduce mosquito breeding;

3. Protect susceptible groups: take personal protective measures, such as wearing long-sleeved clothes and pants, applying mosquito repellent, etc.;

4. Vaccination: There are no specific drugs and vaccines to prevent dengue fever, but there are vaccines for dengue virus in development.

3. Precautions

1. Maintain good hygiene habits: wash hands frequently, ventilate frequently, and pay attention to personal hygiene;

2. Avoid traveling or living in epidemic areas: If you must go to epidemic areas, please be sure to take necessary mosquito prevention measures;

3. Seek medical attention in time: Once you have symptoms such as fever and rash, please seek medical attention in time and inform the doctor that you may be infected with dengue virus.