Wednesday , October 5 2022

Flu in autumn and winter should be played against influenza vaccine? What is the difference between trivalent and tetravalent? | ENT disease | ENT | Health New Knowledge



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(Key words:
Influenza vaccine
,
Vaccine
,
Cold
,
Flu
,
Virus
)

What is Influenza?

Influenza (abbreviated as flu) is an acute respiratory infection with a rapid epidemic, a wide range of dissemination and serious complications. In addition, the flu virus is very prone to change, so the epidemic is often devastating and can even cause a global pandemic, posing a major threat to human health. Taiwan is a tropical and subtropical region in the northern hemisphere, and viruses can be isolated throughout the year. However, major epidemics remain dominated by autumn and winter.

Influenza is an acute viral respiratory disease, and the main cause of the disease is Influenza Virus, which has a period of incubation of about 1 to 4 days, is mainly infected by flying mites or by direct contact with the patient secretaries. In all age groups, the severity of the symptoms caused by infection refers to the immunity, the underlying disease, and the age of an individual. Clinical symptoms include fever, headache, muscle aches, tiredness, cured nose, throat pain, and symptoms such as cough, in addition, about 10% of infected people have gastrointestinal symptoms such as nausea, vomiting and diarrhea with respiratory symptoms.

For most healthy adults, it usually takes 3-7 days to recover, while some people have symptoms of cough and general discomfort for more than two weeks. Although in clinical diagnosis, the flu can not be easily distinguished from other acute respiratory diseases, such as: usually cold, laryngitis, bronchitis, viral pneumonia, etc. In general, flu symptoms are more serious than common colds. The duration of the disease is also longer.

In addition to the rapid-emergence and wide range of features, flu can also cause serious complications and death, especially in elderly, younger children, pregnant women, immunological dysfunction and cardiovascular disease, chronic lung disease, kidney disease, People with diabetes and obesity can cause complications such as are bacterial pneumonia, viral pneumonia, encephalitis or brain lesion, myocarditis or pericarditis and rearing syndrome. At present, the "grip is complicated by serious illness", which belongs to the fourth type of legal Infectious Disease.

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