… case–control design to estimate vaccine effectiveness against symptomatic Covid-19 … that
in the full national Covid-19 case data, although there was a higher proportion of young adults (…

… cases of Covid-19 in the vaccinated cohorts was 2.4 cases per 100,000 person-days (range,
0.7 to 6.8), as compared with 34.6 cases … , whereby higher effectiveness against Covid-19 …

… Overall, the mRNA-1273 (Moderna) vaccine showed the highest overall vaccine effectiveness
across our study period, starting at 97·3% (95% CI 96·0–98·2) in days 50–100 after …

… The high VE in a real-world setting, including apparent effectiveness against asymptomatic
infections, offers hope that COVID-19 vaccination will eventually control the pandemic. …

… or die, thereby focusing on the cases of highest clinical and public health significance. CDC
… US sites to evaluate vaccine effectiveness and collect information on all COVID-19 vaccine …

… Our results show the importance and urgency of achieving high vaccination coverage in a
… Kong and individual-level COVID-19 case data to estimate vaccine effectiveness of one, two…

… case patients with laboratory-confirmed Covid-19 at 31 hospitals in 23 states. We estimated
vaccine effectiveness … findings of high effectiveness (93%) for the BNT162b2 vaccine against …

… Therefore, real-world data VE is of high interest and … COVID-19 where tested. It might
explain some of the difference in effectiveness we observe in Israel regarding positive cases. The …

… -negative case–control design to estimate vaccine effectiveness … vaccination status in persons
with symptomatic Covid-19 … Overall, we found high levels of vaccine effectiveness against …

… effectiveness of the BNT162b2 vaccine against new cases and against complications of
breakthrough SARS-CoV-2 cases … Our results indicate consistently that a high level of protection, …