Tweet
While H3N2 has 30~40% in all strains in Japan, more than 95% of all influena virus in China is occupied by A/H3N2.
Followings are parts of mechanical translation of their announcement.
Recently, with the drop in temperature, the influenza virus has begun to stir. Data from the Chinese Center for Disease Control and Prevention (CDC) shows that the predominant influenza strain circulating in China is the H3N2 subtype, accounting for over 95% of all influenza viruses. Today, let's take a closer look at this "old friend" and receive the most essential prevention strategies!
1. Understanding H3N2: It’s not a common cold!
Many people think that the flu is just a more severe cold. This is actually a misunderstanding. Influenza is an acute respiratory infectious disease caused by influenza viruses, and is highly contagious and spreads quickly. Among them, the H3N2 subtype is famous for its easy mutation, rapid spread, and strong pathogenicity. Its characteristics are as follows:
1. High mutation rate: The H3N2 virus is a master of disguise among influenza viruses, easily mutating through antigenic drift, which may reduce immunity established through previous infection or vaccination.
2. High transmissibility: Primarily transmitted through droplets produced by sneezing and coughing, and can also be indirectly transmitted through contact with virus-contaminated objects.
3. High risk to high-risk groups: The elderly, young children, pregnant women, and patients with chronic underlying diseases (such as heart disease, asthma, and diabetes) have a higher risk of developing severe illness after infection.
| Influenza | Common cold | |
| Pathogen | Influenza virus (e.g. H3N2) | HRV |
| Fever degree | High fever (39-40°C) is common | Rare or low-grade fever |
| Systemic symptoms | Significant! Headache, muscle pain throughout the body, weakness | Mild or no symptoms |
| Disease course | Long, usually 1-2 weeks, prone to complications | Short. 5-7 days |
| Risks | There is also the possibility of serious complications such as pneumonia and myocarditis. | Low risk in general |
In the face of influenza, we cannot go into battle "barely". Currently, influenza vaccination is the most effective and economical way to prevent influenza and reduce the risk of influenza-related severe illness and death.
1. Is it still too late to get vaccinated?
There's still time! It usually takes 2 to 4 weeks after vaccination for protective levels of antibodies to develop in
https://www.zjg.gov.cn/zjg/ylws_jbfk...f5111dad.shtml