Pfizer Jab Effectiveness “Declines Faster” Than AstraZeneca: Oxford Study
London, United Kingdom: The effectiveness of the Pfizer-BioNTech vaccine against Covid-19 declines faster than that of the AstraZeneca jab, according to a new study published on Thursday. “Two doses of Pfizer-BioNTech have greater initial effectiveness against new COVID-19 infections, but this declines…