HomeNewsWorldCoronavirus pandemic | Countries must prepare sustainable logistics to deliver COVID-19 vaccine: Expert

Coronavirus pandemic | Countries must prepare sustainable logistics to deliver COVID-19 vaccine: Expert

Pawanexh Kohli, Honorary Professor of Post Harvest Logistics at the University of Birmingham in the UK, said the pandemic has left everyone 'flattening the curve' by self-isolating to buy time for healthcare networks to cope with expected inflow of patients.

March 28, 2020 / 13:01 IST
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Representative Image
Representative Image

While social distancing and self-isolation can delay the spread of COVID-19, developing a vaccine and laying out the strategy to deliver it to every citizen in the world is crucial to stop the pandemic, a logistics expert says.

Pawanexh Kohli, Honorary Professor of Post Harvest Logistics at the University of Birmingham in the UK, said the pandemic has left everyone 'flattening the curve' by self-isolating to buy time for healthcare networks to cope with expected inflow of patients.

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"We appear to have no other recourse against this invisible enemy, but to consciously isolate from unnecessary proximity until a vaccine is developed," Kohli said in a statement.

He believes a COVID-19 vaccine could be delivered either this year, if testing is fast-tracked, or next year.

COVID-19 Vaccine
Frequently Asked Questions

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How does a vaccine work?

A vaccine works by mimicking a natural infection. A vaccine not only induces immune response to protect people from any future COVID-19 infection, but also helps quickly build herd immunity to put an end to the pandemic. Herd immunity occurs when a sufficient percentage of a population becomes immune to a disease, making the spread of disease from person to person unlikely. The good news is that SARS-CoV-2 virus has been fairly stable, which increases the viability of a vaccine.

How many types of vaccines are there?

There are broadly four types of vaccine — one, a vaccine based on the whole virus (this could be either inactivated, or an attenuated [weakened] virus vaccine); two, a non-replicating viral vector vaccine that uses a benign virus as vector that carries the antigen of SARS-CoV; three, nucleic-acid vaccines that have genetic material like DNA and RNA of antigens like spike protein given to a person, helping human cells decode genetic material and produce the vaccine; and four, protein subunit vaccine wherein the recombinant proteins of SARS-COV-2 along with an adjuvant (booster) is given as a vaccine.

What does it take to develop a vaccine of this kind?

Vaccine development is a long, complex process. Unlike drugs that are given to people with a diseased, vaccines are given to healthy people and also vulnerable sections such as children, pregnant women and the elderly. So rigorous tests are compulsory. History says that the fastest time it took to develop a vaccine is five years, but it usually takes double or sometimes triple that time.
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