Pfizer and AstraZeneca are winners of vaccines, But Pfizer vaccine offers longer-term protection-by Dr Harold Gunatillake Both prevent hospitalization of cases who contract the Delta variant, being vaccinated with either vaccine- prior. Total number of COVID-19 cases passes 181 million and more than 3.9 million deaths. Covid-19 has now been reported on every continent. COVID-19 is a respiratory disease caused by the SARS-CoV-2 virus. Currently, there are 127 candidate vaccines. Today, there are 37 candidate vaccines in stage 3 clinical trials. So far, 19 vaccines have been authorized across several countries. Both Pfizer and AstraZeneca are winners when there are so many other candidate vaccines? There is more evidence that Pfizer vaccine offers longer-term protection. Currently, the thought in Australia is that people under the age of 60 should preferentially get Pfizer, In the UK people under the age of 40 are advised to get Pfizer. Atagi comprises independent infectious ...