Waning COVID19 Vaccine Effectiveness (VE) for #CoronaVac & #BNT162b2 in #Malaysia
➡️ Observational study: Data on all confirmed COVID cases from 1-30 Sept 2021
⬆️ ‘Early’ group (fully vaccinated in April to June 2021) & the ′late′ group (fully vaccinated in Jul to Aug 21) 1/
➡️ Observational study: Data on all confirmed COVID cases from 1-30 Sept 2021
⬆️ ‘Early’ group (fully vaccinated in April to June 2021) & the ′late′ group (fully vaccinated in Jul to Aug 21) 1/
➡️ For BNT162b2:
-VE against COVID-19 infections declined from 90.8% in the late group to 79.1% in the early group.
-VE against ICU admission & deaths were comparable between the two different periods. 2/
-VE against COVID-19 infections declined from 90.8% in the late group to 79.1% in the early group.
-VE against ICU admission & deaths were comparable between the two different periods. 2/
➡️ For CoronaVac:
-VE against COVID-19 infections waned from 74.4% in the late group to 30.0% in the early group.
-VE also declined significantly against ICU admission, dropping from 56.1% to 29.9%
-For deaths, VE did not wane after 3 to 5 months of full vaccination 3/
-VE against COVID-19 infections waned from 74.4% in the late group to 30.0% in the early group.
-VE also declined significantly against ICU admission, dropping from 56.1% to 29.9%
-For deaths, VE did not wane after 3 to 5 months of full vaccination 3/
➡️ Conclusions:
1-VE against COVID-19 infections waned after three to five months of full vaccination for both BNT162b2 and CoronaVac in Malaysia.
2-For CoronaVac, protection against ICU admission declined as well. 4/
medrxiv.org/content/10.110…
1-VE against COVID-19 infections waned after three to five months of full vaccination for both BNT162b2 and CoronaVac in Malaysia.
2-For CoronaVac, protection against ICU admission declined as well. 4/
medrxiv.org/content/10.110…
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