Study Finds Pfizer And AstraZeneca Vaccines Effective Against The Delta Variant “” As Long As You Get Both Doses

Study Finds Pfizer And AstraZeneca Vaccines Effective Against The Delta Variant “” As Long As You Get Both Doses

Share to Linkedin Both the Pfizer and AstraZeneca coronavirus vaccines work well at preventing symptomatic cases of the delta coronavirus variant"”which became the dominant strain in the U. S. this month"”but the vaccines' effectiveness drops significantly in patients who only have one of the two doses, according to a new study. Grace Thomson receives the coronavirus vaccine from Paula McMahon at the Louisa Jordan Hospital as ... [+] the roll out begins on December 8, 2020 in Glasgow, Scotland. A study of 19, 000 people from Public Health England published Wednesday found that both doses of either the Pfizer or AstraZeneca vaccines help protect against symptoms from both the alpha (B. 1. 1. 7, also known as the U. K. variant) and delta variants at comparable rates. Two doses of the Pfizer vaccine had an effectiveness of 93. 7% at preventing symptomatic alpha infections, and 88% for the delta variant. Two doses of AstraZeneca were found to be 74. 5% effective at preventing symptomatic alpha infections, and 67% for delta. However, the effectiveness of the vaccines plummeted if a patient had only received one dose of either vaccine: the study found both to be just more than 48% effective against