HomeNewsWorldCountries start thinking about easing up on restrictions

Countries start thinking about easing up on restrictions

“To end the confinement, we’re not going to go from black to white; we’re going to go from black to gray,” top French epidemiologist Jean-François Delfraissy said in a radio interview.

April 09, 2020 / 14:39 IST
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Even as coronavirus deaths mount across Europe and New York, the U.S. and other countries are starting to contemplate an exit strategy and thinking about a staggered and carefully calibrated easing of restrictions designed to curb the scourge.

“To end the confinement, we’re not going to go from black to white; we’re going to go from black to gray,” top French epidemiologist Jean-François Delfraissy said in a radio interview.

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Deaths, hospitalizations and new infections are leveling off in places like Italy and Spain, and even New York has seen encouraging signs amid the gloom. At the same time, politicians and health officials warn that the crisis is far from over and a catastrophic second wave could hit if countries let down their guard too soon.

“We are flattening the curve because we are rigorous about social distancing,” New York Gov. Andrew Cuomo said. “But it’s not a time to be complacent. It’s not a time to do anything different than we’ve been doing.”

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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