What is the difference between dengue serotypes?
What is the difference between dengue serotypes?
The difference is based on antibody reactions to surface antigens on the virus. Each serotype has subtle differences in their surface proteins, meaning that different antibodies are produced to bind to those proteins. I’ve attached a decent review concerning dengue.
What are the 4 serotypes of dengue?
The Dengue Serotypes Dengue infections are caused by four closely related viruses named DEN-1, DEN-2, DEN-3, and DEN-4. These four viruses are called serotypes because each has different interactions with the antibodies in human blood serum.
Which dengue serotype is most common?
Serotyping revealed that DENV-1 was the most common form (41%) followed by DENV-2 (31%), DENV-3 (20%), and DENV-4 (7%) [15].
What is dengue virus serotypes?
There are four dengue virus serotypes: DENV-1, DENV-2, DENV-3, and DENV-4. They belong to the genus Flavivirus, family Flaviviridae (of which yellow fever virus is the type species), which contains approximately 53 viruses. 31. The flaviviruses are relatively small (40–65 nm) and spherical with a lipid envelope.
Is dengue a DNA virus?
Dengue virus (DENV) is the cause of dengue fever. It is a mosquito-borne, single positive-stranded RNA virus of the family Flaviviridae; genus Flavivirus.
How many times can you get dengue?
Dengue is caused by one of any of four related viruses: Dengue virus 1, 2, 3, and 4. For this reason, a person can be infected with a dengue virus as many as four times in his or her lifetime.
What are warning signs of dengue?
Warning Signs*
- Abdominal pain or tenderness.
- Persistent vomiting.
- Clinical fluid accumulation.
- Mucosal bleed.
- Lethargy or restlessness.
- Liver enlargement > 2 cm.
- Laboratory finding of increasing HCT concurrent with rapid decrease in platelet count.
Is dengue transmitted by kissing?
An infected mosquito can later transmit that virus to healthy people by biting them. Dengue cannot be spread directly from one person to another, and mosquitoes are necessary for transmission of the dengue virus.
Does dengue have a vaccine?
Vaccines for Dengue Fever The first recommended dengue vaccine (CYD-TDV) is a live recombinant tetravalent vaccine evaluated in phase 3 trials as a three-dose series (0-, 6-, 12-month schedule).
How can dengue be prevented?
Use insect repellent, wear long-sleeved shirts and long pants, and control mosquitoes inside and outside your home. Each year, an estimated 400 million people are infected with dengue virus.
How long will dengue last?
How Long Does Dengue Fever Last? Symptoms can start anywhere from 4 days to 2 weeks after being bitten by an infected mosquito, and typically last for 2 to 7 days.
Which organs are affected by dengue?
Based on the fact that the liver is one of the main organs affected by dengue35,36,37,38 and that lungs and heart are also important sites involved with the severe disease13,37,39,40,41, samples from all these three organs were considered.