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Indications that Vaccines Help Some COVID Long-Haulers

An estimated 10% to 30% of people who get COVID-19 suffer from lingering symptoms of the disease, or what's known as "long COVID."

Judy Dodd, who lives in New York City, is one of them. She spent nearly a year plagued by headaches, shortness of breath, extreme fatigue and problems with smell, among other symptoms.

She says she worried that this "slog through life" was going to be her new normal.

Everything changed after she got her COVID-19 vaccine.

"I was like a new person, it was the craziest thing ever," says Dodd, referring to how many of her health problems subsided significantly after her second shot.

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Presymptomatic individuals accounted for 75 percent of confirmed COVID-19 transmission events --New study ,

Analysis of Asymptomatic and Presymptomatic Transmission in SARS-CoV-2 Outbreak, Germany, 2020

Catching the coronavirus from people who are asymptomatic, individuals who are infected but never have symptoms, may be exceptionally rare, according to a small but thorough study of 59 people who had the virus and 254 people they interacted with. However, presymptomatic individuals, those who are infected but haven’t yet begun to show symptoms, accounted for 75 percent of confirmed transmission events, researchers report in an April dispatch of Emerging Infectious Disease.

The seven asymptomatic cases did not transmit the virus to any of their contacts. Twenty-two of the 29 transmission events occurred when an infected person who was not yet showing symptoms interacted with people outside of their household. The study underlines the importance of isolation after testing positive, to reduce the chance of transmission even before symptoms start. ...

 

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