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Vaccination after infection may curb long COVID-19; desktop 'air curtains' may deflec
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Vaccination after infection may curb long COVID-19; desktop 'air curtains' may deflect virus particles


[Image: 2022-05-19t200923z_2_lynxnpei4i0yq_rtrop...k=N0bhyptB]


The following is a summary of some recent studies on COVID-19. They include research that warrants further study to corroborate the findings and that has yet to be certified by peer review.


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Post-infection vaccination may reduce long COVID-19
Vaccination after infection with SARS-CoV-2 may contribute to a reduction in the burden of long COVID symptoms, a new study suggests.

Researchers tracked 6,729 volunteers ages 18 to 69, who got two shots of either AstraZeneca's viral vector vaccine or an mRNA vaccine from Pfizer-BioNTech or Moderna after recovering from an infection with the coronavirus and who reported long COVID symptoms of any severity at least once between February and September 2021.

The odds of reporting long COVID - symptoms lasting at least 12 weeks - fell by an average of 13 per cent after a first vaccine dose, the researchers reported on Wednesday in The BMJ. The second dose, given 12 weeks after the first, was associated with a further 9 per cent decrease in the odds of long COVID that persisted for at least 9 weeks, on average, the researchers said.


Desktop "air curtains" may deflect virus particles
When people cannot maintain a safe distance to avoid the spread of COVID-19, a newly designed desktop "air curtain" can block aerosols in exhaled air, researchers found.

Air-curtains - artificially created streams of moving air - are often used to protect patients in operating rooms. At Nagoya University in Japan, researchers tested their new desktop device by simulating a blood collection booth in which a lab technician is close to the patient.
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