Vaccines

There's mounting research to suggest that protecting people who are immuno-compromised from getting COVID is important not just for their sake – it could be critical in the effort to end the pandemic for everyone.

The evidence comes from two separate strands of studies.

Dr. Laura McCoy has been doing the first type. She's an infectious disease researcher at University College London.

"The group of people that I'm particularly interested in are those living with HIV," she says.

She's been studying how well their immune systems respond to vaccines against COVID-19 — specifically the Pfizer vaccine.

So far, it's worked quite well for HIV-positive people.

But there's a catch. In her studies, "all of our participants had really quite well-controlled HIV."

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Russia's Sputnik V vaccine only slightly less effective against Delta variant, developers say

Tue, 2021-06-29 12:11 — mike kraft

Russia's Sputnik V shot around 90% effective against Delta variant, developers say Russia's Sputnik V vaccine against COVID-19 is around 90% effective against the highly contagious Delta variant of coronavirus, its developers said on Tuesday. Reuters Staff U.S.

MOSCOW (Reuters) -Russia’s Sputnik V vaccine against COVID-19 is around 90% effective against the highly contagious Delta variant of coronavirus, its developers said on Tuesday.

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Three studies offered fresh evidence that widely used vaccines will continue to protect people against the coronavirus for long periods

Tue, 2021-06-29 09:36 — mike kraft

Three scientific studies released on Monday offered fresh evidence that widely used vaccines will continue to protect people against the coronavirus for long periods, possibly for years, and can be adapted to fortify the immune system still further if needed.

Most people immunized with the mRNA vaccines may not need boosters, one study found, so long as the virus and its variants do not evolve much beyond their current forms — which is not guaranteed. Mix-and-match vaccination shows promise, a second study found, and booster shots of one widely used vaccine, if they are required, greatly enhance immunity, according to a third report.

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Study indicates mix-and-match Covid vaccine approach boosts immune response

Tue, 2021-06-29 09:26 — mike kraft

Mixing different types of Covid vaccines can boost immune response, study finds Some European countries have started offering alternatives to AstraZeneca as a second shot after the vaccine was linked to rare blood clots. NBC News

A mixed schedule of vaccines where a shot of Pfizer's Covid-19 vaccine is given four weeks after an AstraZeneca shot will produce better immune responses than giving another dose of AstraZeneca, an Oxford study said on Monday.

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