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10.1038/s41591-021-01446-y

http://scihub22266oqcxt.onion/10.1038/s41591-021-01446-y
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34244681!ä!34244681

suck abstract from ncbi


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pmid34244681      Nat+Med 2021 ; 27 (9): 1614-1621
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  • mRNA-1273 COVID-19 vaccine effectiveness against the B 1 1 7 and B 1 351 variants and severe COVID-19 disease in Qatar #MMPMID34244681
  • Chemaitelly H; Yassine HM; Benslimane FM; Al Khatib HA; Tang P; Hasan MR; Malek JA; Coyle P; Ayoub HH; Al Kanaani Z; Al Kuwari E; Jeremijenko A; Kaleeckal AH; Latif AN; Shaik RM; Abdul Rahim HF; Nasrallah GK; Al Kuwari MG; Al Romaihi HE; Al-Thani MH; Al Khal A; Butt AA; Bertollini R; Abu-Raddad LJ
  • Nat Med 2021[Sep]; 27 (9): 1614-1621 PMID34244681show ga
  • The SARS-CoV-2 pandemic continues to be a global health concern. The mRNA-1273 (Moderna) vaccine was reported to have an efficacy of 94.1% at preventing symptomatic COVID-19 due to infection with 'wild-type' variants in a randomized clinical trial. Here, we assess the real-world effectiveness of this vaccine against SARS-CoV-2 variants of concern, specifically B.1.1.7 (Alpha) and B.1.351 (Beta), in Qatar, a population that comprises mainly working-age adults, using a matched test-negative, case-control study design. We show that vaccine effectiveness was negligible for 2 weeks after the first dose, but increased rapidly in the third and fourth weeks immediately before administration of a second dose. Effectiveness against B.1.1.7 infection was 88.1% (95% confidence interval (CI): 83.7-91.5%) >/=14 days after the first dose but before the second dose, and was 100% (95% CI: 91.8-100.0%) >/=14 days after the second dose. Analogous effectiveness against B.1.351 infection was 61.3% after the first dose (95% CI: 56.5-65.5%) and 96.4% after the second dose (95% CI: 91.9-98.7%). Effectiveness against any severe, critical or fatal COVID-19 disease due to any SARS-CoV-2 infection (predominantly B.1.1.7 and B.1.351) was 81.6% (95% CI: 71.0-88.8%) and 95.7% (95% CI: 73.4-99.9%) after the first and second dose, respectively. The mRNA-1273 vaccine is highly effective against B.1.1.7 and B.1.351 infections, whether symptomatic or asymptomatic, and against any COVID-19 hospitalization and death, even after a single dose.
  • |2019-nCoV Vaccine mRNA-1273[MESH]
  • |Adult[MESH]
  • |Aged[MESH]
  • |Aged, 80 and over[MESH]
  • |Antibodies, Viral/blood[MESH]
  • |COVID-19 Vaccines/immunology[MESH]
  • |COVID-19/*epidemiology/immunology/*prevention & control[MESH]
  • |Case-Control Studies[MESH]
  • |Female[MESH]
  • |Genome, Viral/genetics[MESH]
  • |Humans[MESH]
  • |Male[MESH]
  • |Middle Aged[MESH]
  • |Qatar/epidemiology[MESH]
  • |SARS-CoV-2/*immunology[MESH]


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