Colds and flu
The common cold refers to the "common cold", also known as "cold", acute rhinitis, or upper respiratory tract infection. The common cold is a common acute viral infection of the upper respiratory tract. Influenza (flu) is a disease caused by a virus and is extremely contagious. Influenza is caused by different types of viruses. There are three known types of influenza: Type A, Type B, and Type C. Among them, Type A is more common.
Mainly combined with epidemiological history, clinical manifestations, and pathogenic examinations.
1. Clinical manifestations
Symptoms such as dry throat, itchy throat, sneezing, nasal congestion, coughing, watery eyes, and headache.
2. Routine blood examination
The blood test showed that the total number of white blood cells was normal or decreased, and the proportion of lymphocytes increased.
3. Etiology examination
The viral nucleic acid test is positive, the virus antigen test is positive, the virus-specific antibody IgG recovery period is ≥4 times higher than the acute period, virus isolation and culture are positive, etc.
The disease has a rapid onset and an incubation period of 1 to 3 days. It mainly manifests as nasal symptoms, such as sneezing, nasal congestion, and runny nose. It can also manifest as cough, dry throat, itchy throat, sore throat or burning sensation, and even nose After dripping sense. The nasal mucus becomes thick after 2 to 3 days, often accompanied by sore throat, tearing, decreased taste, poor breathing, and hoarseness. Generally, there is no fever and systemic symptoms, or only low-grade fever, malaise, mild chills, and headache.
Flu is an acute disease of the respiratory tract. Symptoms include fever, headache, muscle pain, runny nose, cough, and sore throat. It is usually mild. It is mainly spread through air droplets and direct contact. The virus is present in the respiratory secretions of patients or invisible infections. It is spread into the air by speaking, coughing or sneezing, and kept for 30 minutes. After inhalation by susceptible persons That can be infected. The speed of transmission depends on how crowded the crowd is. Indirect contact by polluting everyday objects can also play a role in transmission.
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百姓所说的感冒是指“普通感冒”，又称“伤风”、急性鼻炎或上呼吸道感染。感冒是一种常见的急性上呼吸道病毒性感染性疾病. 流行性感冒(流感)是一种由病毒引致的疾病，传染性极高。 流感由不同类型的病毒引起，已知的流感有三种类型：甲型、乙型及丙型， 其中以甲型较为常见。