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Pfizer vaccine 95% effective, no serious side effects even in adults

New York – Pfizer released a second batch of interim results today saying their coronavirus vaccine candidate is 95 per cent effective. They have also claimed that it protects the most vulnerable people from the risk of falling prey to the virus.
Pfizer and BioNTech plan to apply “within days” to US regulators for emergency use approval. The company said that no serious side effects have shown up. The most common complaint was fatigue after the second vaccine dose, affecting about 4 per cent of the participants who got the shot.
The Pfizer vaccine comes loaded with one tricky logistical challenge: It needs to be stored at extreme sub-zero temperatures. Moderna – the other US pharma giant which has released 94.5 per cent efficacy results – says its vaccine remains stable at home refrigerator temperatures for 30 days.
Pfizer and BioNTech expect to produce a total of 50 million vaccine doses in 2020 and up to 1.3 billion doses in 2021. US regulators hope to have 20 million vaccine doses each from Moderna and Pfizer available for distribution in late December. The first wave of vaccination will be for those in the most vulnerable groups. Non-high risk populations will have to wait until Spring or more likely the Summer of 2021 to get a shot.
“Primary efficacy analysis demonstrates BNT162b2 to be 95 pert cent effective against Covid-19 beginning 28 days after the first dose; 170 confirmed cases of Covid-19 were evaluated, with 162 observed in the placebo group versus 8 in the vaccine group,” Pfizer said on Wednesday.
The latest announcement comes a little over a week after Pfizer’s first bombshell announcement on November 9 that its vaccine is 90 per cent effective. In the first round, Pfizer based its results on a total of 94 infections.
Pfizer-BioNTech use the ‘mRNA’ technology which means the vaccine is not embedded with the virus itself and there is therefore no risk of catching Covid-19 from the shot itself. The vaccine is infused with a piece of genetic code that trains our immune system to recognise the spike in protein on the surface of the virus – a lethal signature of the coronavirus.

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