Coronavirus spike protein

The World Health Organization (WHO) and the United States are monitoring a new variant of the SARS-CoV-2 coronavirus, reported AFP. The potential significance of the numerous mutations is currently unknown.

As stated, this strain is likely to spread around the world, and a larger increase in the number of infected could have severe consequences in some areas.
Although it is not yet known to what extent omicron is contagious for those who have been vaccinated and recovered from COVID-19, the WHO recommends accelerated vaccination of risk groups.

The World Health Organization is convening extraordinary meetings today in connection with the newly discovered variant of the coronavirus in South Africa and Botswana, which was announced yesterday. It has about 32 mutations and scientists warn that this makes it very dangerous. It has been found that the variant is spread mostly among young people.

Antibodies formed after coronavirus disease fade rapidly. The tests are not reliable enough to know if their number is protective - ie. enough to protect us from a new infection. So there is no point in doing antibody tests.