On road to ending pandemic, more people vaccinated than total cases to date: Data

Despite the landmark data, it remains unclear how long it will take to vaccinate the world. Many of those vaccinated have received only one of two doses required.

Reuters
February 04, 2021 / 09:34 AM IST

More people are now vaccinated against COVID-19 than have been infected by the virus that has swept the globe over the past year, a milestone on the road to ending the pandemic, based on data reported on Wednesday.

Despite the landmark data, it remains unclear how long it will take to vaccinate the world. Many of those vaccinated have received only one of two doses required.

A total of 104.9 million vaccine doses have been administered, according to University of Oxford-based Our World in Data vaccinations and the latest data on Wednesday from the U.S.-based Centers for Disease Control and Prevention.

The total vaccinated now exceeds the 104.1 million COVID-19 cases of infection in a Reuters global tracker.

COVID-19 infections are still rising in 44 countries and the virus has killed at least 2.26 million people globally, according to the Reuters tracker. Health experts are racing to vaccinate as many as possible in the face of new variants that are more contagious.

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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Duke University’s Global Health Innovation Center confirms global purchases of 7.7 billion doses with another 5 billion doses under negotiation or reserved as optional expansions of existing deals.

Israel leads the world, having administered enough vaccine doses for 28% of its population, assuming every person needs two doses, according to Our World in Data.

World Health Organization Director-General Tedros Adhanom Ghebreyesus appealed on Tuesday for greater cooperation between nations to achieve worldwide vaccination at a scale needed to end the pandemic.

"Despite the growing number of vaccine options, current manufacturing capacity meets only a fraction of global need," he wrote in Foreign Policy magazine.

"Allowing the majority of the world's population to go unvaccinated will not only perpetuate needless illness and deaths and the pain of ongoing lockdowns, but also spawn new virus mutations as COVID-19 continues to spread among unprotected populations," he wrote.

Rich countries squabbling over COVID-19 vaccine supplies must consider the situation in poorer parts of the world, the WHO said last week, warning that hoarding of shots "keeps the pandemic burning."
Reuters
TAGS: #coronavirus #World News
first published: Feb 4, 2021 09:29 am