The euphoria from the introduction of the Covid-19 vaccine was faded by the emergence of a new strain of nCoV, and the course of the 2021 pandemic has become even more uncertain.

The next three months will be a challenging and distant time for a virus-free life that may still be a long way off.

There is currently only limited information on the new CoV strain.

Restrictions are likely to remain in place during the new year, and even governments must impose stricter measures if the new strain is indeed more likely to spread.

Health officials predict that by mid-2021, the world will have enough supplies of vaccines that anyone who wants to get vaccinated can get them.

He's running a vaccine, and an average British general takes care of nearly 9,000 people.

In addition, two doses of Pfizer vaccine should be given 21 days apart, complete immunity 7 days after the second injection.

In countries easing regulation during the Christmas dip, cases are likely to spike at the start of the new year.

After a person gets the vaccine, they become immune (at least for a short time).

Public immunity also depends on how effective the vaccine is - which still needs further monitoring.

If the vaccine is only able to prevent infected individuals with severe symptoms, vaccination to vulnerable people will reduce the death rate, but the epidemic will continue to rage.

In addition to vaccines, Rachel Nania, editor of AARP outlines the bright prospects of 2021, such as the development of more effective drugs or more effective Covid-19 therapy, and nCoV testing being carried out.

Still, things don't change by 2021. The people of the world still need to remain vigilant for months.

Travel in 2021 could become even more favorable, although airlines may require an immunization certificate.

Can vaccination erase the CoV?

Some vaccines, such as measles, provide nearly lifelong protection, while others need a booster shot, like tetanus.

"The social and economic impact of a pandemic is likely to be long-term. Maybe life will never return to the way it was. But we have a responsibility to make it safer by better preparing for it.