Important statement from the World Health Organization about the vaccine

Talking about obtaining doses of the new Corona virus vaccine, which struck the population of the globe from around the world and infected millions of them, has become the main concern of humanity these days to curb the spread of the pandemic, and with the launch of vaccination campaigns around the globe, Covid 19 resorted to new mutations that forced science and scientists to search for ways to enhance the effectiveness of the vaccine against this mysterious visitor.

In this regard, the World Health Organization announced, on Monday, that obtaining the third dose to combat the mutant should not be ruled out.

The head of the organization's immunity department, Catherine O'Brien, said in a meeting of the European Parliament via video link, that coordination must be made between vaccine testing and control institutions in the world.

It is reported that each of the Pfizer/Biontech and AstraZeneca vaccines should be given to the person in two doses, separated by a few weeks. While the Johnson & Johnson vaccination is sufficient for a single dose.

Boost Vaccines

And the head of Britain's efforts to sequence Corona's genomes was that there would be a need for regular booster vaccines against the emerging virus because of the mutations that make it more transmissible and more able to evade human immunity.

Sharon Peacock, who heads COVID-19 Genomics UK (COG-UK) which has sequenced half of the genomes of the emerging virus globally so far, said international cooperation is essential in the "cat and mouse" battle with Corona.

Peacock added to Reuters: "We have to appreciate that we will always have to get booster doses, because immunity to the Corona virus does not last forever."

Dealing with virus modifiers

To that, she explained, "We are already modifying vaccines to deal with what the virus does in terms of evolution, so there are emerging variants that have a combination of increased transmissibility and the ability to partially evade our immune response."

She stressed that she was "confident that regular booster doses will be needed to deal with future variables, but the speed of vaccine innovation means that these doses can be developed at a rapid pace and disseminated to the population."

It is noteworthy that the emerging coronavirus, which has killed 2.65 million people globally since its appearance in China in late 2019, mutates once every two weeks, slower than influenza or HIV, but this is enough to require modifications to vaccines.

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