Does the COVID-19 mRNA vaccine boost against Omicron seem to be less effective?

Preliminary data from the U.

The COVID-19 Omicron mutant strain is the strain with the strongest transmissibility, the strongest pathogenicity, and the highest percentage of COVID-19 vaccine breakthrough infections among all strains currently known

Recently, the US Centers for Disease Control and Prevention released a report analyzing the breakthrough infection of the Omicron mutant strain

The report pointed out that from December 1 to 8, there were 43 cases in 22 states in the United States

One of them was hospitalized and there were no deaths

Among these 43 cases, 34 people completed two doses of COVID-19 vaccine (mRNA COVID-19 vaccine), and 14 of them also received booster injections

Among these 43 cases, 21 people have been infected with COVID-19 before and are now infected again

It can be seen that no matter whether the existing COVID-19 vaccine is 2 or 3 doses, the effectiveness of the Omicron mutant strain is greatly reduced.

The spread of COVID-19 Omega clones is shocking, and the number of cases in Denmark doubled in 1.

The Danish data is even more frightening

There is currently a surge in Omicron cases in the UK

 

 Earlier this month, the first case of Omicron mutant infection was detected in the United States

Due to the significant decline in the effectiveness of the existing Omi-Cronnon mutant vaccine, coupled with the relatively loose epidemic prevention policies in the United States, the Omi-Cronnon mutant is likely to cause a new round of COVID-19 pneumonia in the United States
.

 

 

 

Although the United States is still mired in the quagmire of the new crown epidemic, the number of new cases in the United States has exceeded 170,000 in a single day
.
However, because the Omicron mutant strain can cause breakthrough infections, once it becomes the main mutant strain, the number of people infected with COVID-19 pneumonia will increase sharply
.

Recently, Zhang Wenhong, director of the Department of Infectious Diseases of Huashan Hospital of Fudan University, shared his views on the new coronavirus variant "Omega Clone", "We can imagine several scenarios for the spread of Omega Clone in the future
.

The best case is that it is weakly toxic and only spreads in South Africa; the acceptable case is that it has strong transmission power and strong toxicity, but the vaccine is effective against it; the most serious case is that it has strong transmission power and virulence.
Strong, and if the vaccine is strengthened, it will have no effect
.

We need to re-examine the vaccine strategy while strengthening prevention and control
.
"

Isn't the booster of the COVID-19 vaccine that effective for Omega?

(Source: Internet, reference only)

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