Herd immunity: why we ‘can’t get to zero’ on Covid – Coronavirus Fact vs Fiction

America’s outlook is rosier today than it has been in months; daily coronavirus cases and deaths fell to a fifth of what they were during the winter peaks thanks to the climbing vaccinations. Until now, more than 40% of the adult population and nearly 70% of the elderly population are fully immunized, according to new data from the CDC.
Experts, including Dr Anthony Fauci, have estimated that between 70% and 85% of the US population must be immune to the virus – through vaccination or a previous infection – for herd immunity to be achieved. He said in March this can happen when high school students are vaccinated.

The United States is a little closer to that. A federal government official told CNN that the United States Food and Drug Administration (FDA) was in the process of approving the Pfizer / BioNTech vaccine for children and adolescents aged 12 to 15 at the start of the year. next week.

But the average daily rate of vaccinations has been declining for about two weeks, and polls show young Americans are the least likely to say they want a vaccine, Report by Ralph Ellis and Christina Maxouris. This is concerning as unvaccinated youth are helping fuel the increase in cases across the United States.

“What really worries me is that these people who are already on the fence are not getting vaccinated (and) we are not achieving herd immunity in the fall,” CNN told CNN. CNN medical analyst Dr Leana Wen. “And then with winter … we have a big resurgence, maybe we have variants coming from other countries, and we could start this whole process all over again and have another huge pandemic this winter.”

It is not all gloomy and gloomy. Some experts believe the reduction in infections will be enough, allowing most people to get back to their pre-pandemic lives as long as the number of cases continues to drop.

“We may not get to zero, we probably won’t,” Dr. Ashish Jha, dean of Brown University School of Health, told CNN on Monday. “But if we can get the infections at very low levels, most of us can get on with our lives as normal. I think we can probably live with that,” he added.

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YOU ASKED. WE HAVE ANSWER.

Q: Can new or future variants ruin herd immunity?

A: Here’s the good news: The three vaccines currently in use in the United States offer strong protection against known variant strains of the coronavirus.

But as the virus continues to spread and replicate in new people, it has more opportunities to mutate. And if there are significant mutations, new, more dangerous variants could emerge. The key is to cancel out the amount of virus circulating, so that it is less likely to mutate and cause more infectious or deadly variants.

This is why it is so important to get vaccinated and to continue to wear masks, experts say.
Send your questions here. Are you a health worker fighting Covid-19? Message us on WhatsApp about the challenges you are facing: +1 347-322-0415.

WHAT IS IMPORTANT TODAY

More Covid cases in the past two weeks than in the first six months of the pandemic

There have been more reported cases of the virus in the past two weeks than in the first six months of the pandemic, Tedros Adhanom Ghebreyesus, director general of the World Health Organization, said Monday. India and Brazil accounted for more than half of the cases last week.
It comes as the burden of Covid-19 has shifted to poorer countries. India has overtaken 20 million official cases Tuesday (although the actual total is estimated to be much higher), while neighboring Nepal has seen a more than 1,200% increase in the average number of Covid-19 cases since mid-April. Nepal’s prime minister on Monday pleaded for increased international aid, saying: “We live in an interconnected and interconnected world, [a] a pandemic like this spares no one and no one is safe. ”
Meanwhile, FDA Acting Commissioner Dr Janet Woodcock warned that the continued spread of Covid-19 would fuel the rise of more variants as the world turns into a “giant petri dish” for the virus.

Covid-19 has caused one in three deaths in Brazil so far this year

A third of all people who died in Brazil in 2021 were victims of Covid-19, Report by Rodrigo Pedroso and Caitlin Hu. According to official data, 615,329 deaths were reported in the country between January 1 and April 30. Of these, 208,370 were linked to Covid-19, according to the Brazilian Ministry of Health – 33.9% of the national total.

The virus has exploded with vengeance in the South American giant in recent months – fueled in part by disregard for social distancing precautions and the emergence of new extra-contagious variants – and has claimed more lives in the past four months than in all of 2020. And despite Brazil’s strong immunization program, its deployment of Covid-19 vaccines has been slow. So far, less than 10% of the population has been vaccinated.

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Europe plans a summer reopening

After nearly a year of closed borders, the European Union could open in June to fully vaccinated holidaymakers from countries with low infection rates in time for the summer according to a plan revealed on Monday, James Frater reports.

Officials hope the plan – which will be discussed tomorrow by ambassadors from European countries – can be implemented by the end of June. The proposals, released by the European Commission, said arrivals must have been inoculated 14 days before arrival with a vaccine from its approved list, including BioNTech / Pfizer, Oxford University / AstraZeneca, Johnson & Johnson and Moderna.

Decisions about borders can only be made by individual countries, so each member state will decide whether or not to implement these proposals.

ON OUR RADAR

  • World No.1 Novak Djokovic is hoping Covid-19 vaccines will not be mandatory for tennis players on tour, while refusing to reveal if he would receive a vaccine in the future. The Serb has previously said he will oppose compulsory vaccination, but has since said he will wait for more details from the governing body of tennis.
  • New York Gov. Andrew Cuomo on Monday announced that subway service in New York would revert to a 24/7 schedule on May 17 as the state and its neighbors New Jersey and Connecticut open their savings
  • Americans are not getting the mental health assistance they need during the pandemic, according to a report, which found this to be especially true for the the youngest, the oldest and the poorest.
  • American parents – mothers in particular – have been hit hard by the pandemic. But vaccine rollout and Washington pledges to spend big on child care could help moms go back to work.
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TODAY’S TOP TIP

Teenage stress has been increased by the pandemic

“A lot of the teens I work with face almost crippling social anxiety, either from lack of practice after a year with little precious time with friends, or from general social insecurity,” writes psychologist John Duffy.

“Some also experience a sense of hopelessness, depression and anxiety that they have never experienced before, having always viewed themselves as positive and upbeat people. Several of my clients are now taking medication to balance their mood.” , he added.

NEW PODCAST

“Our new show is a place where we can all reflect on how the pandemic has changed us and the steps we want to take to move forward, together. – Dr Sanjay Gupta, CNN chief medical correspondent

For the first time in over a year, many of us are imagining the next chapter in our lives. Gupta is on a mission to help us approach our new normal with full awareness in their new podcast “Chasing Life”, which begins May 11th. LISTEN TO THE TRAILER.

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