protection of the community as a connection. Katona,

 

MD, is a specialist in infectious diseases at the David Geffen Medical School at UCLA in Los Angeles. In December, infections broke out in the city, which probably burdened the health care system. This attack is probably caused by the SARS-CoV-2 variant known as P.1. According to virologist Andrew Pekosz, PhD, professor and vice president of the Department of Molecular Microbiology and Immunology, this may be due to some antibody reactions caused by previous infections and may reduce the effectiveness of the vaccine. at the Johns Hopkins Bloomberg School of Public Health in Baltimore, who spoke at the February Johns Hopkins briefing on viral variants.

 

Such an increase in reinfection and serious illness in an area where it is believed to have enough infection to achieve herd immunity is a "terrible scenario," Katona said.

 

In addition to P.1, there are at least two other Corona Again Spreading variants of anxiety that have spread to countries around the world: B.1.1.7, first discovered in England, and B.1.351, first discovered in South Africa. All three have infected people in the United States. And these variants may be more contagious, more likely to cause serious illness, or better prevent the production of antibodies produced by vaccination or previous infection. Some have a combination of these features. Other variants have recently been discovered in the USA

 

And as the virus continues to spread rapidly around the world, the possibility of re-infection remains. This is because the higher the number of those infected, the greater the chance that the virus will have new mutations that could cause more people to get sick again. "Checking the number of cases is the most critical thing we can do to minimize the likelihood that there will be discrepancies in the population," Pekosz said.

 

Older people and people with impaired immune systems may be at the highest risk

While previous infections, whether the original virus as a variant, almost certainly offer some protection, it is possible to re-infect the infection. And some people may be more vulnerable than others. This also applies to seniors. A new study at The Lancet found that people under the age of 65 with COVID-19 have almost 80% resistance to reinfection. In contrast, protection has fallen to 47 percent for people aged 65 and over. This is probably because immune function tends to decline with age.

 

Some people with weakened immune systems are also likely to be at increased risk of re-infection, Katona said. These are cancer patients or people after an organ transplant.

 

Masks and social distances can help prevent re-infection

As with infection, the risk of re-infection increases as more virus particles you are exposed to. Therefore, experts advise that people with this disease be careful and limit exposure.

 

"Even if you have COVID, you're not Superman," Glatt said. "You can't walk and say you're not in danger."

 

That's why scientists say that after recovering from COVID-19, you should wear a mask when you're in public, stay away from other people, wash your hands, and try to limit interactions with well-ventilated or outdoor areas. There is another reason to take such measures after the disease: you may be re-infected and you may spread the disease, but you have no symptoms. And COVID-19 can spread to asymptomatic people.