This is an automatically translated article.
Dengue fever is an infectious disease that can lead to many dangerous complications. In particular, the second dengue infection is often more severe than the first, and can even be fatal.
1. Why can dengue fever be re-infected?
Dengue fever caused by dengue virus. There are four types of dengue virus: D1, D2, D3 and D4. Most cases are caused by dengue viruses D1 and D2, followed by D3 and D4. After contracting dengue, the patient will have lifelong immunity to the infected virus but no cross-immunity to the remaining viruses. Therefore, patients can still have dengue fever and be re-infected with other viruses. Each person can have dengue fever 4 times in a lifetime, corresponding to 4 types of dengue virus.
2. The second dengue fever is usually worse than the first
Dengue re-infection is very dangerous because the condition is often worse than the first time. Patients may have more unusual developments, which should be closely monitored, especially in patients with chronic diseases such as diabetes, heart disease, liver and kidney disease... or pregnant women, young children , infants, the elderly.
The reason why the second dengue fever is often worse than the first is due to the first infection, patients often have dengue fever caused by type D1 virus. This is a classic type with mild clinical manifestations such as: fatigue, headache, little bleeding, short duration of illness. After recovering from the disease, the patient will have lifelong antibodies to type D1. In the second case of dengue fever, the patient contracted other serotypes. At that time, the patient's body exists in parallel with 2 types of antibodies. These two types of antibodies can be in conflict, causing an increased hemorrhagic reaction, increasing the concentration of the blood, causing more severe symptoms such as dizziness, bleeding, even heart failure.
Buồn nôn là dấu hiệu sốt xuất huyết
Warning signs of dengue fever include:
Fatigue, lethargy, body aches Restless mood, struggling Abdominal pain Nausea, vomiting Nosebleed, bleeding gums Gastrointestinal bleeding: abdominal pain, bloody stools, vomiting blood Brain hemorrhage: coma, convulsions Tests show that the volume of red blood cells increases compared to before, platelets decrease... When showing signs of dengue fever re-infection need to go to the hospital immediately to check, to avoid serious consequences for the body.
3. What to do when re-infected with dengue fever?
Bệnh nhân sốt xuất huyết nên uống nhiều nước
The diagnosis of dengue re-infection is based on clinical symptoms combined with laboratory results and history of dengue infection. Because re-infection of dengue fever is very dangerous, patients should pay special attention to:
Follow the treatment regimen and instructions of the doctor Have a reasonable diet: drink a lot of water, eat a lot of fruits and vegetables fruit juice, drink oresol to rehydrate, eat easy-to-digest foods... In case you notice any abnormal signs in your body, you should immediately notify your doctor so that you can handle it promptly.
Please dial HOTLINE for more information or register for an appointment HERE. Download MyVinmec app to make appointments faster and to manage your bookings easily.
