Name: Covid-19 Boosters Are Coming（Covid-19 Boosters Are Coming: Here’s What to Know | WSJ）
Uploaded: 2021-08-21T21:58:12.000Z
Duration: 4 min 47 s
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- We are announcing our plan to stay ahead of this virus

進階被動語態

by being prepared to offer COVID-19 booster shots

to fully vaccinated adults 18 years and older.

They would be eligible for their booster shot

eight months after receiving their second dose

- [Narrator] The Biden administration booster announcement

comes amid reports of fully vaccinated people getting COVID,

This includes a Wall Street Journal analysis

that found the Delta variant is breaking through

vaccine protection at a higher rate than other strains.

an independent evaluation of the safety and effectiveness

of a third dose of the Pfizer and Moderna mRNA vaccines

and the CDC's advisory committee on immunization practices

based on a thorough review of the evidence.

- [Narrator] Here's why a third-dose booster shot

Data suggests that while vaccines are still shown

as antibodies begin to dwindle naturally,

the protection vaccines offer it can wane over time.

The mRNA boosters that the Biden administration

Studies show that they generate higher levels

of neutralizing antibodies than just two doses alone.

Neutralizing antibodies are the ones primarily responsible

for stopping the virus from entering cells.

some of that initial protection against the virus,

potentially stopping infection from happening

The reason why we are seeing vaccines still hold up

and be effective at preventing hospitalization

is because of other parts of the immune system,

what's known as the adaptive immune system,

- [Narrator] The mRNA vaccine makers have released data

showing that antibody levels have increased

and Pfizer and partner BioNTech are planning

to seek clearance from the FDA for a COVID-19 booster

The company said they sent the FDA results

showing a third dose of vaccines generated higher levels

of neutralizing antibodies against the original virus,

The third dose appeared safe in the trial as well.

The Biden administration is recommending that booster shots

for the general public be taken about eight months

to the standard two-course vaccine regimen,

booster shots could be needed even sooner.

The current guidance in the CDC is that those

who are moderately to severely immunocompromised

should take a third dose of an mRNA vaccine

- Immunocompromised people is a very broad term

that includes people who are transplant patients,

Basically individuals whose immune systems

don't necessarily respond like the general populations.

- [Narrator] Some of those who fall into this category

should be able to walk into certain clinics

boosters have not yet been approved by the FDA,

but Moderna, which also produces a two-dose mRNA vaccine,

said it plans to ask regulators next month

- The plan ensures that people who were fully vaccinated

This includes our most vulnerable populations,

like our healthcare providers, nursing home residents,

- [Narrator] Johnson & Johnson does not make

which means the current booster guidelines won't apply.

- For people who received the Johnson & Johnson vaccine,

we anticipate vaccine boosters will likely be needed.

The J & J vaccine was not administered in the U.S.

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Covid-19 Boosters Are Coming（Covid-19 Boosters Are Coming: Here’s What to Know | WSJ）

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