Dengue fever is a common acute infectious disease in the tropics and subtropics. It is transmitted through mosquitoes as a vector and the pathogen is dengue virus. In recent years, the disease has become more active. In some countries in Southeast Asia, it has become a local epidemic, and domestic epidemics have also occurred. Therefore, the media has become increasingly concerned about dengue fever.
Since the beginning of summer, the temperature in July has reached the best conditions for mosquito breeding. Recently, there is much rain, and insects are easy to breed. The dengue fever is high in Southeast Asian countries such as Singapore, Thailand, and Laos, and these countries are also popular tourist routes during the summer vacation. Industry insiders reminded that travel to these countries requires adequate preventive measures against dengue fever. There are currently no specific drugs for the treatment of dengue fever. Therefore, prevention is a key measure to prevent and treat dengue fever.
Dengue symptoms
Dengue fever manifested as sudden onset, chills, rapid fever (39 to 40°C in 24 to 36 hours, and a small number of patients showed bimodal fever), accompanied by more severe headaches, eyelid pain, muscle, joint and skeletal pain and Symptoms such as fatigue, nausea, and vomiting may show bleeding tendency. Face, neck, and chest flushes are called "three red signs," conjunctival hyperemia, superficial lymphadenopathy, skin rash, and beam arm tests are positive, and white blood cells and thrombocytopenia are reduced. Some patients have mild or moderate dengue fever with atypical or mild symptoms, short duration, and rapid recovery (some of which are self-healing). The mortality rate is extremely low.
The main characteristic of dengue fever is sudden high fever, and the body temperature of children can be as high as 40°C within 24 hours. At the same time as high fever, there are headaches, back eye pain, general muscle pain, bone and joint pain and other symptoms. Some children may be accompanied by nausea, vomiting, abdominal pain, diarrhea, and may show facial flushing, conjunctival hyperemia, and superficial lymphadenopathy.
Fever: Adult cases usually have sudden onset, headache, fever, and retrobulbar pain. The body temperature can reach 40°C within a few hours. Accompanied by epilepsy, with bone, intramuscular and joint disease, appetite loss, nausea, vomiting, occasional abdominal pain, diarrhea or constipation. Facial flushing, conjunctival hyperemia, and superficial lymphadenopathy are visible in early stages. Children have a slower onset, milder symptoms and lower body temperature. Fever lasts 2-7 days. In some cases, the body temperature dropped to normal on the first 3-5 days after the onset of disease, and then rose again after the day, known as double peak or saddle heat type. During the fever period, R1 has a relatively slow pulse, and a weak feeling often takes several weeks to fully recover.
Rash: The disease course occurs 3-6 days and may be a plaque rash, measles-like rash, scarlet fever-like rash, erythematous rash, or subcutaneous bleeding. Different forms of rash can be seen in the same patient and are distributed throughout the body, limbs, trunk or head and face. More itching, most do not desquamation. The rash lasts about 3-4 days.
Bleeding: About 25% to 50% of cases have different degrees of bleeding in different parts of the body, such as bleeding gums, nose bleeding, subcutaneous bleeding, gastrointestinal bleeding, hemoptysis, hematuria, vaginal bleeding, abdominal or chest bleeding. Bleeding occurs more than 5-8 days of the course of the disease.
Other: About 1/4 of cases have hepatomegaly and jaundice is rare.
What is the difference between cold and dengue fever?
Dengue fever symptoms are similar to colds, and many patients treat it as a cold. This not only delays time, but also worsens the condition. What is the difference between cold and dengue fever? What are the symptoms of dengue fever? In July, there was much rain and there was a high incidence of dengue fever. There have been many cases of dengue fever in Guangdong. The main feature of dengue fever is sudden high fever. Symptoms are similar to colds. What is the difference? China Food Network introduces you to the symptoms of dengue fever.
Cold: Symptoms and prevalence are similar to dengue fever. The spread of the cold is related to direct contact with the patient and there is no rash or bleeding. The main symptoms of a cold are fever, runny nose, sore throat, headaches, body aches, allergies, and inflammation.
Dengue fever: The initial symptoms may be similar to a common cold. Infants and young children have 1 to 5 days of fever, throat inflammation, mild cough, and other similar cold symptoms. Typical dengue symptoms are more likely to manifest in older children or adults. Patients in the affected area have a fever of 38 °C or more, plus 1. Intense headache, posterior orbital pain, bone joint or muscle pain. 2. A rash occurs 3 to 4 days after the fever. 3. Itchy body during the onset. With one of the above three symptoms, even if it is a suspected case of dengue, it should be checked within 24 hours. The clinical manifestations of dengue fever are usually fever, long skin rashes, swollen lymph nodes, severe headaches, pain in the posterior fossa, muscle soreness or joint pain, and are also called "bone fracture fever."
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