香港的COVID19的资料如下：
7 天： 平均新COVID19案例是319，那么共 2233
7 天：平均死案例是1， 那么共7
百分比是：0.3%
基于动态清零原则，那些中招者都要住院。
2017年，香港地区有14700多人因流感住院，其中327人死亡。（1）百分比是：2.2%。 如此，单是应付流感，香港每年都需要经常要动态清零law！！
本人见识淺薄，分析一定有问题，请各位指教。
后加： （1）如果只是重症才住院， 那么，百分比是可能提高很多， 就可以解析到->流感不需要动态清零。（2）我用7天的data是因为现在的疫苗百分比比之前高了很多，而omicron的影响和以往的不一样。
謝謝你的分享！流感的傳播率和變異是否與 OMINCRON 有分別呢？
回覆刪除谢谢您的留言。您的问题很好啊。答复如下：
刪除流感的傳播率和變異是否與 OMINCRON 有分別呢？
傳播率的比较：
Omicron 厉害很多：For the flu, the R0 tends to be between 1 and 2, which means that for every person infected with the flu, they will infect one to two more people. For the original COVID-19 variant, the R0 is higher than the flu, between 2 and 3. Delta is more than twice as contagious as previous variants of COVID-19, with an R0 that is estimated to be between 5-7. Omicron to be about 3 times as infectious as the Delta variant （1），while an article says R0 for omicron is 30s! (2)
變異的比较：
一般的SARS的變異率和流感差不多，但COVID-19那个就快很多，因为在短时间内，多了很多的變种。Like influenza viruses, RSV, enteroviruses, and rhinoviruses, which cause the common cold, SARS-CoV-2 carries its genetic information on a strand of RNA. And compared with other RNA viruses, "[the mutation] rate in SARS-CoV-2 is not particularly remarkable. But, SARS-CoV-2, the virus that causes COVID-19, may appear to evolve more mutations due to the fact that it's much more transmissible than other common viruses, resulting in many more cases. (3)
(1) COVID-19 and Influenza Surveillance - Coronavirus (virginia.gov)
(2) Beyond Omicron: what’s next for COVID’s viral evolution (nature.com)
(3) Do other viruses have as many variants as SARS-CoV-2? | Live Science