Vaccination and Wearing Masks

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“Once enough people have some immunity, either because of previous infection or because of vaccination, the virus will have a hard time spreading through the community.” Consumer Reports

Researchers hope that Americans getting vaccination will be sufficient to end the pandemic once there is sufficient supply and enough pf the population gets vaccinated.

In trying to understand the readily available vaccine information and how it will affect the lives of Americans, Consumer Reports has reviewed government guidance and consulted with public health experts to provide insight to their readers about the vaccine candidates.

Vaccination equals two doses

Vaccines require two doses—an initial shot and a booster, taken several weeks later. Generally with a two-dose vaccine, it takes about two weeks from the second dose for a vaccine’s protection to fully kick in, according to Natalie Dean, PhD, an assistant professor of biostatistics specializing in infectious disease and vaccine development at the University of Florida.

Though two doses are necessary, the FDA’s analysis of the Pfizer vaccine indicates that people appear to be somewhat less likely to get COVID-19 within two weeks of receiving the first dose.

It’s unclear how long protection from that first dose may last. And the second dose is still required for full protection, to ensure a more durable immune response. 

Halting the virus transmission

It is not known definitely whether getting vaccinated will prevent you from spreading the coronavirus to others. Thus, preventive measures such as social distancing, washing hands, and wearing a mask will remain important even after you get vaccinated, according to the CDC.

More research is required before scientists can say exactly how many people need to be vaccinated to achieve “herd immunity “. It’s possible that with extremely effective vaccines showing 95 percent efficacy, we might hit the point where communities are protected by the time somewhere between 60 and 70 percent of people have been vaccinated, according to Kathleen Neuzil, MD, a professor of vaccinology and director of the Center for Vaccine Development and Global Health at the University of Maryland in Baltimore. 

It will be possible for vaccines, as long as Americans get vaccinated, to have a significant impact on ending this pandemic.

Severe allergic reactions

In the U.K., public health regulators have advised that anyone with a history of a severe, potentially life-threatening allergic reaction to a vaccine, medicine, or food should not receive the vaccine. Two healthcare workers were reported to have had severe allergic reactions after receiving the vaccine. Public health experts worry that the reports could frighten people with allergies and make them think they should avoid getting the vaccine.

From Pfizer’s vaccine trial results, there were no severe allergic reactions. Deliberately, the trials excluded people who had previously had severe allergic reactions to vaccines, a Pfizer scientist said during the advisory panel’s discussion.

The FDA plans to advise that people who are allergic to components of the vaccine should not get it, an agency scientist explained. The FDA’s earlier review of Pfizer’s trial data found slightly more potential minor allergic reactions in the group that received the vaccine than in the placebo group, but none of these were severe, and none occurred immediately after people received their doses of vaccine.

References:

  1. https://www.consumerreports.org/vaccines/your-questions-about-a-coronavirus-vaccine-answered/?EXKEY=YSOCIAL_FB&fbclid=IwAR2LW6PC_JSykJwyG-Kv9ozQkNvxH-1VnYmAby-MJIr8kSJfHm7UwtyH3k8
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