Israelis who had an infection were more protected against the Delta coronavirus variant than those who had an already highly effective COVID-19 vaccine. The natural immune protection that develops after a SARS-CoV-2 infection offers considerably more of a shield against the Delta variant of the pandemic coronavirus than two doses […]
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Because the Delta variant of SARS-CoV-2 spreads more easily than the original virus, the proportion of the population that needs to be vaccinated to reach herd immunity could be upwards of 80% or more, experts say. Also, it could be time to consider wearing an N95 mask in public indoor spaces regardless […]
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This is difficult to say definitively. When the body’s immune system responds to an infection, it isn’t always clear how long any immunity that develops will persist. Covid-19 is a very new disease, and scientists are still working out precisely how the body fends off the virus. There is reason […]
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Immunity to the novel coronavirus could last for a year — and possibly longer — particularly after COVID-19 vaccination, according to The New York Times . Two recent studies indicate that most people who contracted COVID-19, recovered and then got vaccinated later may not need a booster shot. Those who were never […]
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Scientists told Salon what you need to know about mixing different COVID-19 vaccines In mid-April, the New York Post ran a story about a worried patient who suffered a vaccine mix-up. “Man accidentally gets one Moderna and one Pfizer COVID vaccine,” the headline read. Both the Moderna and the Pfizer coronavirus vaccines, […]
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The majority of vaccinated people who were admitted to hospital for covid-19 were probably infected shortly before or around the time of their vaccination, highlighting the importance of maintaining social distancing and understanding that immunity develops over time, researchers have said.1 The International Severe Acute Respiratory Infection Consortium Clinical Characterisation […]
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After more than a year of living with COVID-19, the United States is beginning to see a light at the end of the tunnel. More than 3 million shots are administered every day. With over 74 million people fully vaccinated — more than 22% of the population — the nation is steadily building […]
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As COVID-19 vaccination rates pick up around the world, people have reasonably begun to ask: how much longer will this pandemic last? It’s an issue surrounded with uncertainties. But the once-popular idea that enough people will eventually gain immunity to SARS-CoV-2 to block most transmission — a ‘herd-immunity threshold’ — […]
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As COVID-19 cases resulting from infection with SARS-CoV-2 variants accumulate in the US and around the world, one question looms large: How well do the COVID-19 vaccines developed so far protect against these novel coronavirus spinoffs? “The virus is telling us it’s going to throw out a lot of mutations,” […]
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