Immune system working hard to keep us healthy

Immune system working hard to keep us healthy

It’s cold and flu season and most of us will encounter a virus at some point. So how does our immune system work to keep us healthy?

It’s cold and flu season and most of us will encounter a virus at some point. So how does our immune system work to keep us healthy?

According to Dr. Michaela Gack with Cleveland Clinic, once we fight off a virus, our immune system does its best to protect us from a second infection.

“Whenever we have a second infection, these antibodies can be produced and thereby protect us, but there are some limitations. It only works if it’s the same virus or a very similar virus,” she explained.

Dr. Gack studies the immune system and said some viruses rarely mutate, which means we have long-term protection after an initial infection.

For example, if you’ve had chickenpox or have been vaccinated for it, your immune system will remember for decades and protect you from becoming sick.

However, there are also viruses that mutate rapidly, like flu and COVID, making it difficult for your immune system to recognize the virus due to the mutations.

That’s why it’s important to get a flu and COVID vaccine every year.

If the vaccine is similar to the virus that’s circulating, your immune system recognizes it and offers some protection, resulting in milder illness.
The healthier you are, the better your immune system will function in general.

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