SARS-CoV-2 spike protein mutations: Difference between revisions
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Andrew Dunn and Allison DeAngelis, ''Business Insider'', January 25, 2021.</ref>. | Andrew Dunn and Allison DeAngelis, ''Business Insider'', January 25, 2021.</ref>. | ||
South Africa announced stopping the use of its supply of Astra-Zenica vaccine February 7, 2021<ref name="haltsa">[https://www.bbc.com/news/world-africa-55975052 Covid: South Africa halts AstraZeneca vaccine rollout over new variant], BBC News, February 8, 2021.</ref>. This was based on a small trial limited to young participants showing only about 20% effectiveness at preventing mild disease from 501Y.V2. Whether this vaccine prevents severe disease from 501Y.V2 in older people remained unclear. | South Africa announced stopping the use of its supply of Astra-Zenica vaccine February 7, 2021<ref name="haltsa">[https://www.bbc.com/news/world-africa-55975052 Covid: South Africa halts AstraZeneca vaccine rollout over new variant], BBC News, February 8, 2021.</ref>. This was based on a small trial limited to young participants showing only about 20% effectiveness at preventing mild disease from 501Y.V2. Whether this vaccine prevents severe disease from 501Y.V2 in older people remained unclear<ref name="haltsa" />. | ||
===Virulence Increase Uncertain=== | ===Virulence Increase Uncertain=== | ||
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*January 29, 2021: Cited a report by Novavax of lower vaccine effectiveness in South Africa<ref name="novavax1" />, and evidence that the USA is doing far too little virus genome sequencing<ref name="zimmer1" />. | *January 29, 2021: Cited a report by Novavax of lower vaccine effectiveness in South Africa<ref name="novavax1" />, and evidence that the USA is doing far too little virus genome sequencing<ref name="zimmer1" />. | ||
*January 30, 2021: Cited Johnson & Johnson's vaccine trial results posted January 29<ref name="jnj1" />. | *January 30, 2021: Cited Johnson & Johnson's vaccine trial results posted January 29<ref name="jnj1" />. | ||
*February 8, 2021: Changed most mentions of 501.V2 to 501Y.V2 as this terminology seems to have become predominant. | *February 8, 2021: Added halting of use of Astra-Zenica vaccine in South Africa<ref name="haltsa" />. Changed most mentions of 501.V2 to 501Y.V2 as this terminology seems to have become predominant. | ||
==See Also== | ==See Also== | ||