A week after receiving Pfizer vaccine shot, a Nurse in California tested COVID positive

California: In a surprising event, a nurse in California tested positive for the novel coronavirus, a week after receiving the Pfizer Inc's vaccine shot. A medical expert, however, said that a body needs more time to build up protection.

A nurse, who is working at two different local hospitals in California, Mathhew W. is 45 years old. Except for a sore arm, the man did not suffer any other side effects. Six days later, the nurse became sick on Christmas eve. He was working in a COVID-19 unit. He first got the chills, and later came down with muscle aches and fatigue. When he did a test, he tested positive for COVID-19 the day after Christmas.

An infectious disease specialist, Christian Ramers said that this scenario was not unexpected. However, they knew that it would take about 10 to 14 days for an individual to start to develop protection from the vaccine. He added that the first dose gives an individual 50%, and one needs that second dose to get up to 95%.

Another vaccine against COVID-19 of University of Oxford and AstraZeneca Plc won the United Kingdom clearance. This marks the very first approval worldwide for a vaccine shot, which has faced a lot of questions and is a key to mass immunisations. Early in 2021, the vaccine shot will be given to the most vulnerable group of people of the country, said the company and the government on Wednesday. After Pfizer Inc. and BioNTech SE's vaccine, this is the second coronavirus injection to be cleared by the UK for emergency use.

The homegrown shot of the UK has faced a lot of questions about its discrepancies in its clinical-trial results. The UK government has invested more in the product than in any other vaccine. It bought 100 million doses. However, what makes this shot more accessible for other countries as this vaccine shot can be deployed swiftly because it's is easier to transport and store as compared to the Pfizer-BioNTech one. This new vaccine shot does not require deep freezing but rather require only refrigerator temperatures for storing.

Also Read Oxford University and AstraZeneca vaccine gets the UK clearance

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