All COVID-19 articles – Page 22
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News
COVID-19 virus increases risk of other infections by disrupting normal mix of gut bacteria
Infection with Covid-19 can reduce the number of bacterial species in a patient’s gut, with the lesser diversity creating space for dangerous microbes to thrive, a new study has found.
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Researchers find SARS-CoV-2 Omicron BA.2 subvariant less severe than earlier variants
team led by investigators at Massachusetts General Hospital (MGH) has determined that the SARS-CoV-2 Omicron BA.2 subvariant is less severe than the previous Delta variant and less severe to an even greater extent than the original Omicron variant.
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Intranasal COVID vaccine works against variants in animals
Researchers have developed an intranasal vaccine against Covid-19 that can fight off the original virus and two variants in hamsters.
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mRNA vaccines significantly reduce severity of Delta, Omicron COVID-19 infections
People who have received several doses of an mRNA COVID-19 vaccine are more likely to have milder illnesses if infected with Delta or Omicron variants than those who are unvaccinated.
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New Omicron subvariant largely evades neutralizing antibodies, raising spectre of increased Covid infections this winter
A study at Karolinska Institutet in Sweden shows that the coronavirus variant BA.2.75.2, an Omicron sublineage, largely evades neutralizing antibodies in the blood and is resistant to several monoclonal antibody antiviral treatments.