{"id":1398,"date":"2021-05-25T08:56:03","date_gmt":"2021-05-25T12:56:03","guid":{"rendered":"https:\/\/covidqanda.org\/?p=1398"},"modified":"2021-05-25T08:56:03","modified_gmt":"2021-05-25T12:56:03","slug":"are-vaccines-effective-against-the-variants-arising-out-of-india","status":"publish","type":"post","link":"https:\/\/covidqanda.org\/?p=1398","title":{"rendered":"Are vaccines effective against the variants arising out of India?"},"content":{"rendered":"\n

Note: I’m taking a few days off from the daily Q&A.\u00a0 Will resume on 1 June.\u00a0 In the meantime, please keep sending your questions!<\/em><\/p>\n\n\n\n

Question:<\/span><\/strong>\u00a0Are vaccines effective against the variants arising out of India?<\/p>\n\n\n\n

Answer:<\/span><\/strong>\u00a0We talked about this issue in our Q&A of 4\/22<\/a>.\u00a0 Since then, we have more data adding to the evidence-base that vaccines are effective against the B.1.617 variant (and sub-lineages).\u00a0 Earlier this week, Public Health England issued a press release describing results of its recent research, “Vaccines highly effective against B.1.617.2 variant after 2 doses<\/a>.”\u00a0 The study<\/a>, which is still in pre-print (e.g. not yet peer reviewed), compared vaccine effectiveness based on variant type (B.1.1.7 originally discovered in the UK and B.1.617.2 originally discovered in India).\u00a0 Findings indicate that:<\/p>\n\n\n\n

  1. For fully vaccinated individuals, both Pfizer and Astra-Zeneca are effective at preventing symptomatic infection from B.1.1.7 and B.1.617.2 variants<\/strong>.\u00a0<\/li>
  2. Effectiveness against symptomatic\u00a0disease is slightly reduced with the B.1.617.2 variant<\/strong>.\u00a0 Two or more weeks after the second dose:
    • Pfizer was 88% (95% CI: 78% to 93%) effective against the B.1.617.2 variant; 93% (95% CI: 90% to 95%) effective against the B.1.1.7 variant<\/li>
    • AstraZeneca was 60% (95% CI: 29% to 77%) effective against the B.1.617.2 variant; 66%\u00a0\u00a0(95% CI: 54% to 74%)\u00a0effective against the B.1.1.7 variant<\/li><\/ul><\/li>
    • Effectiveness after just one dose is greatly reduced with the B.1.617.2 variant<\/strong>: After only one dose, both vaccines were 33% effective against symptomatic disease from B.1.617.2 variant, compared to around 50% effective against the B.1.1.7 variant<\/li><\/ol>\n","protected":false},"excerpt":{"rendered":"

      Note: I’m taking a few days off from the daily Q&A.\u00a0 Will resume on 1 June.\u00a0 In the meantime, please keep sending your questions! Question:\u00a0Are vaccines effective against the variants arising out of India? Answer:\u00a0We talked about this issue in our Q&A of 4\/22.\u00a0 Since then, we have more data adding to the evidence-base that […]<\/p>\n","protected":false},"author":1,"featured_media":1399,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"nf_dc_page":"","om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_post_was_ever_published":false},"categories":[64],"tags":[189,158,164],"class_list":["post-1398","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-vaccines","tag-astrazeneca","tag-pfizer","tag-uk","fallback-thumbnail"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"https:\/\/i0.wp.com\/covidqanda.org\/wp-content\/uploads\/2021\/05\/pexels-photo-5878523.jpeg?fit=1880%2C1058&ssl=1","_links":{"self":[{"href":"https:\/\/covidqanda.org\/index.php?rest_route=\/wp\/v2\/posts\/1398","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/covidqanda.org\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/covidqanda.org\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/covidqanda.org\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/covidqanda.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1398"}],"version-history":[{"count":1,"href":"https:\/\/covidqanda.org\/index.php?rest_route=\/wp\/v2\/posts\/1398\/revisions"}],"predecessor-version":[{"id":1400,"href":"https:\/\/covidqanda.org\/index.php?rest_route=\/wp\/v2\/posts\/1398\/revisions\/1400"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/covidqanda.org\/index.php?rest_route=\/wp\/v2\/media\/1399"}],"wp:attachment":[{"href":"https:\/\/covidqanda.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1398"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/covidqanda.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1398"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/covidqanda.org\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1398"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}