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Health experts are urging people who have already had COVID-19 to get vaccinated.

Their recommendation comes after Republican Senator Rand Paul of Kentucky, who contracted COVID-19 in March 2020, stated he does not plan on getting vaccinated against the disease.

Until they show me evidence that people who have already had the infection are dying in large numbers or being hospitalized or getting very sick, I just made my own personal decision that Im not getting vaccinated because Ive already had the disease and I have natural immunity, he told a WABC radio show in New York.

That statement goes against the guidance of the Centers for Disease Control and Prevention (CDC), which advises that people should be vaccinated regardless of whether they have already had COVID-19.

Experts do not yet know how long you are protected from getting sick again after recovering from COVID-19. Even if you have already recovered from COVID-19, it is possible although rare that you could be infected with the virus that causes COVID-19 again, the CDC guidance states.

Dr. Julie Parsonnet, an expert in adult infectious diseases at Stanford University in California, says Pauls comments suggest a lack of understanding about the immune system.

I think its a bad message and I think it reflects a lack of understanding of how immunity works. Usually the first exposure to an infection is sort of like a taste test. Your immune system sees it and it responds, but it doesnt build up very strong memory responses and you dont have the circulating cells that allow you to respond very quickly to infection, Parsonnet told Healthline.

We know that some people who have COVID dont mount an immune response at all. We also know that some people get reinfected and that some people who have gotten reinfected have gotten quite sick. Yes, he (Senator Paul) will have some immunity, but there is good data that you will have better immunity if you get a vaccine, she added.

Dr. William Schaffner is an expert in infectious diseases at Vanderbilt University in Tennessee. He says the recommendation for people who have already had COVID-19 to still get vaccinated is based on two factors.

The first is that the antibody levels after vaccination are much higher than the antibody levels after natural infection. And higher antibody levels are usually associated with a longer duration of protection, Schaffner told Healthline.

The second is, to use Tony Faucis word, higher antibody levels provide a greater cushion of protection against some of the variants. Obviously, those are not sufficient reasons for Dr. Paul, he added.

President Joe Biden has announced a goal of having 70 percent of adults in the United States vaccinated with at least one shot by July 4.

But that leaves almost a third of the population unvaccinated, meaning the coronavirus could still have a chance to mutate.

A substantial number of people who are unvaccinated will continue to support the transmission of the virus and I think this will be more prominent in some communities than others, said Schaffner.

Every time a new person is infected with the virus, the virus multiplies million and billions of times, he added. As it multiplies it mutates. Most of those mutations are harmless, but any one of those people could be a variant factory. They could suddenly develop a mutation or series of mutations by chance alone that would create a new and very dangerous variant. Thats a concept thats not understood at all by the vast majority of people.

Parsonnet says comments like those from Paul are damaging. She argues there needs to be a more united approach against COVID-19.

When I think about COVID-19, I think we are actually fighting a war, she said. We have a global war. Its sort of like that movie Independence Day when the aliens land on Earth. Well, the aliens have landed and theres this virus that is killing off people, and the worst thing you can do when there is an enemy that youre all fighting is for you to shoot each other.

We need to think about this in a much more were in this together way and lets figure out how we pull together to fight the enemy, Parsonnet said. The enemy is not the Democrats and its not the Republicans. The enemys a virus and we need to deal with it.

Original post:
Why You Need to Get Vaccinated Even If You've Had COVID-19 - Healthline