A brand new examine has discovered that the danger of loss of life, hospitalization and critical well being points from COVID-19 will increase with reinfection no matter vaccination.
The examine examined U.S. Division of Veterans Affairs knowledge collected from March 1, 2020 by means of April 6, 2022. It included info on 443,588 sufferers with one SARS-CoV-2 an infection, 40,947 with two or extra infections, and 5.3 million who weren’t contaminated. Many of the examine topics had been male.
“Reinfection with COVID-19 will increase the danger of each acute outcomes and lengthy COVID,” mentioned Dr. Ziyad Al-Aly of Washington College Faculty of Medication in St. Louis. He added that this was clear “in unvaccinated, vaccinated and boosted individuals.”
Reinfected sufferers had a doubled danger of loss of life and a tripled danger of hospitalization in contrast with people contaminated solely as soon as. The sufferers additionally had elevated dangers for plenty of different well being issues, the examine, reported in Nature Medication, discovered. The issues affected the lungs, coronary heart, blood, kidneys, bones and muscle groups. Reinfection additionally elevated the danger of psychological well being, mind and nerve issues.
“Even when one had prior an infection and was vaccinated – that means they’d double immunity from prior an infection plus vaccines – they’re nonetheless inclined to hostile outcomes upon reinfection,” mentioned Al-Aly. He was the lead author of the examine.
Inclined means simply affected or harmed by one thing.
Folks with repeat infections had been thrice extra more likely to develop lung issues, thrice extra more likely to endure coronary heart situations and 60 p.c extra more likely to have mind or nerve issues, the examine discovered. The dangers had been highest within the first month after reinfection however had been nonetheless clear six months later.
The whole dangers of repeat an infection elevated with the variety of infections, even after analyzing variations in COVID-19 variants resembling Delta, Omicron and BA.5, the researchers mentioned.
“We had began seeing numerous sufferers coming to the clinic with an air of invincibility,” Al-Aly instructed Reuters. “They questioned, ‘Does getting a reinfection actually matter?’ The reply is sure, it completely does.”
He added that forward of a season that usually entails journey and indoor gatherings, individuals ought to be conscious that reinfection is critical and will take steps to keep away from getting contaminated.
Al-Aly defined that researchers should not suggesting critical measures, “however perhaps should you’re happening a aircraft, put on a masks.” Or, if an individual is in a meals retailer, “take into account that the individual close to you could have a weak immune system, and should you put on a masks you may assist to guard them,” he mentioned.
I’m John Russell.
Nancy Lapid reported on this story for Reuters. John Russell tailored it for VOA Studying English.
Phrases in This Story
acute – adj. very critical or harmful : requiring critical consideration or motion
prior – adj. present or taking place earlier than the current time
hostile – adj. unhealthy or unfavorable : not good
invincibility – n. inconceivable to defeat or overcome
immune – adj. referring to the best way your physique fights illness