While COVID-19 shares symptoms with the common cold and flu, it poses a greater threat due to its ability to infect cells throughout the body. Repeated infections can lead to stronger immune responses and even 'cytokine storms' which can damage multiple organs.
These days, it’s tempting to compare
-19 program at UT Health Austin. That’s because SARS-CoV-2 binds to ACE2 receptors, which exist in cells all over your body, from your heart to your gut to your brain. It only follows that a bigger threat can trigger an outsize immune response. In some people, the body’s reaction to and less likely to have a serious case after having been infected?” Part of that is true, to an extent. In the first couple years after
as one homogeneous thing, but it’s really not,” Dr. Al-Aly says. So even if your body successfully thwarted one of these intruders in the past, there’s no guarantee it’ll do the same for another, now or in the future, he says. Getting infection, whether it’s your first or fifth fight with the virus. But you’re not home free if you’ve only had, say, a brief fever or cough with
.” That doesn’t mean your experience of a second infection will necessarily be worse, in and of itself, than what you felt during a prior case. But with each new hit, a fresh batch of the virus seeps into your system, where, even if you have a mild case, it has another chance to trigger any of the longer-term complications above. While the likelihood of getting long
, these bacteria do, too, and perhaps they recover , but not on the second or third hit,” he says, throwing off your balance of good-to-bad gut bugs . Another unnerving possibility: The shock to your system triggered by infection snowballs into something debilitating, but each hit is like another round of Russian roulette, Dr. Al-Aly says. From a sheer numbers standpoint, the more times you play a game with the possibility of a negative outcome, the greater your chances are of that bad result occurring. And because every
COVID-19 Reinfection Immune Response Cytokine Storm Flu
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