5 years after it appeared, things we know and still don’t know about COVID

FILE PHOTO: Employee Philipp Hoffmann, of German biopharmaceutical company CureVac, demonstrates research workflow on a vaccine for the coronavirus (COVID 19) disease at a laboratory in Tuebingen

How many people died from COVID-19?

Probably more than 20 million. The World Health Organization has said member countries reported more than 7 million  deaths from  COVID-19 but the true  death toll is estimated to be at least three times higher.

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In the U.S., an average of about 900 people a week have died of COVID-19 over the past year, according to the U.S. Centers for Disease Control and Prevention.

The coronavirus continues to affect older adults the most. Last winter in the U.S., people age 75 and older accounted for about half the nation’s COVID-19 hospitalizations and in-hospital deaths, according to the CDC.

“We cannot talk about COVID in the past, since it’s still with us,” WHO director Tedros Adhanom Ghebreyesus said.

What vaccines were made available?

Scientists and vaccine-makers broke speed records developing COVID-19 vaccines that have saved tens of millions of lives worldwide – and were the critical step to getting life back to normal.

Less than a year after China identified the virus, health authorities in the U.S. and Britain cleared vaccines made by Pfizer and Moderna. Years of earlier research — including Nobel-winning discoveries that were key to making the new technology work — gave a head start for so-called mRNA vaccines.

Today, there’s also a more traditional vaccine made by Novavax, and some countries have tried additional options. Rollout to poorer countries was slow but the WHO estimates more than 13 billion doses of COVID-19 vaccines have been administered globally since 2021.

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