Global Statistics

All countries
193,733,020
Confirmed
Updated on July 23, 2021 6:01 pm
All countries
174,200,905
Recovered
Updated on July 23, 2021 6:01 pm
All countries
4,156,138
Deaths
Updated on July 23, 2021 6:01 pm

Global Statistics

All countries
193,733,020
Confirmed
Updated on July 23, 2021 6:01 pm
All countries
174,200,905
Recovered
Updated on July 23, 2021 6:01 pm
All countries
4,156,138
Deaths
Updated on July 23, 2021 6:01 pm

Mandatory BCG vaccination may slow spread of COVID-19

Grand Jury Deliberations in Breonna Taylor Case Will Be Released

U.S.|Grand Juror in Breonna Taylor Case Says Deliberations Were MisrepresentedThe Kentucky attorney general’s office said it would release the panel’s recordings after a grand juror contended in a court filing that its discussions were inaccurately characterized.Breonna Taylor's family and the lawyer Ben Crump, right, said the charges a Kentucky grand jury agreed upon in the…

Video shows alleged ballot harvesting in Ilhan Omar’s district

Fox News Back to Top ©2020 FOX News Network, LLC. All rights reserved. This material may not be published, broadcast, rewritten, or redistributed. All market data delayed 20 minutes. New Privacy Policy - New Terms of Use (What's New) - FAQ

A Once-in-a-Century Climate ‘Anomaly’ Might Have Made World War I Even Deadlier

(John Finney Photography/Moment/Getty Images) An abnormally bad season of weather may have had a significant impact on the death toll from both World War I and the 1918 Spanish flu pandemic, according to new research, with many more lives being lost due to torrential rain and plummeting temperatures. Through a detailed analysis of an ice…

Sean Hannity claims Dems ‘put all their eggs in the debate basket’ ahead of first Biden-Trump showdown

Joe Biden's campaign has "put all their eggs in the debate basket" after the Democratic nominee kept a low profile for much of the summer, Sean Hannity claimed Monday.“I believe his campaign team – they are seeing what we all see,” said the “Hannity” host, who noted that the former vice president's campaign wrapped up its public events…

Tucker: Amy Coney Barrett ‘represents everything that made this a great country,’ so Dems ‘despise her’

Supreme Court nominee Judge Amy Coney Barrett is causing an uproar among Democrats and according to Tucker Carlson, her happy family is what’s driving them crazy.“Democrats know Amy Coney Barrett’s life refutes the lies they have pushed on the rest of us for decades, [so] they must destroy her personally,” the “Tucker Carlson Tonight” host said…

Countries that had compulsory bacillus Calmette-Guérin (BCG) vaccination at least until 2000 appear to have built up a degree of “herd immunity” against COVID-19, a new study suggests.

A baby receives a BCG vaccine.Share on Pinterest
BCG vaccination, often administered shortly after birth or during childhood, may slow the spread of COVID-19.

There would have been approximately 80% fewer COVID-19 deaths in the United States by March 29, 2020, if the country had employed mandatory BCG vaccination since at least 2000, according to the new research.

The number of these deaths in the U.S. by March 29 was 2,467, but it would have been 468 with mandatory vaccination, say the scientists.

The researchers, all at the University of Michigan, in Ann Arbor, have published their findings in the journal Science Advances.

BCG vaccination is usually given at birth or during childhood to protect against tuberculosis (TB). But there is also evidence that it protects against other respiratory infections and lung cancer. In addition, it is an effective treatment for some forms of bladder cancer.

A study in 2018 found that the vaccine appeared to “reprogram” immune cells to produce more of a particular immune signaling molecule. This, in turn, boosted immunity against a viral infection.

Previous studies have found a link between BCG vaccination and a slower spread of COVID-19 in populations around the world, but they failed to account for national differences in test availability and data reporting.

The new model attempts to get around this limitation by using the initial rate of increase in the number of reported cases and deaths, rather than the absolute numbers.

For each country, the researchers focused on a 30-day period after the first 100 confirmed cases or the first death.

Provided any national differences in reporting remained stable during this period, say the scientists, this should eliminate the effect of this bias on the data.

In their analysis, the scientists also tried to account for other factors that could have affected the number of COVID-19 cases and deaths in different countries. These included the median age of populations, population size and density, and gross domestic product, or GDP, per capita.

They found that having mandatory BCG vaccination significantly “flattened the curve” of the initial spread of COVID-19 throughout the populations studied.

BCG vaccination was first used around a hundred years ago, when TB posed a major threat to public health.

Many countries, such as China, Ireland, and France, have had universal BCG vaccination, at least until very recently, whereas others never made it mandatory, including the U.S., Italy, and Lebanon.

Interestingly, the new study found that COVID-19 spread just as rapidly in countries that had only made BCG compulsory in the past 20 years as it did in countries where it was never compulsory.

This suggests that a large proportion of a population must be protected by the vaccination for it to prevent COVID-19 from spreading easily, the researchers say. This effect is known as herd immunity.

However, the latest findings add to evidence that widespread BCG vaccination of adults and children could protect populations from future COVID-19 outbreaks.

In Australia, a clinical trial is underway to find out whether the vaccine protects medical staff in hospitals from the infection that causes this disease.

Assuming that trials like this prove the vaccine’s safety and efficacy against COVID-19, the question remains whether vaccination of the wider population should be compulsory.

The authors of the new study note that individuals may be tempted to “free ride” and not get vaccinated if they believe that they will be protected through herd immunity.

In the absence of compulsory vaccination, they write, achieving herd immunity will depend on enough individuals choosing to get vaccinated for the wider public good.

The authors emphasize that several other uncertainties remain. It is unclear, for example, whether BCG vaccination protects adults against COVID-19, and if so, how long the protection lasts.

In addition, scientists have yet to investigate whether BCG might have adverse effects on someone who already has the infection responsible for COVID-19.

Finally, even among countries with mandatory BCG vaccination, the new research found large variations in the rates of COVID-19 spread.

“Hence, BCG is by no means a magic bullet that assures safety against COVID-19,” the researchers write. “In all likelihood, there are some societal variables that moderate this effect. This variation must be addressed in future work.”

“All these limitations notwithstanding, the current evidence is the first to show a significant advantage of universal BCG policies in reducing the spread of COVID-19, thereby justifying a thorough investigation of the merit of the mandatory BCG vaccination in the fight against COVID-19.”

Additional caveats are worth noting. Although the vaccine was first administered to humans in the 1920s, a review of the evidence in 1994 found that it is not reliably effective in the treatment of lung-based TB. Since this is the most common and infectious form of the disease, many countries choose not to include the vaccine in routine immunizations.

Furthermore, as the authors of the present study suggest, authorities will need more reliable data than the study’s correlations before they can consider distributing the BCG vaccine en masse to curb COVID-19.

More comprehensive studies into the link between BCG policy and COVID-19 will have to account for complex variables.

For instance, the vaccine is highly effective and sorely needed as a treatment for severe forms of TB in children. The fact that a vast number of children around the world rely on this vaccine should be accounted for when considering its repurposing.

Read More

LEAVE A REPLY

Please enter your comment!
Please enter your name here

Hot Topics

Grand Jury Deliberations in Breonna Taylor Case Will Be Released

U.S.|Grand Juror in Breonna Taylor Case Says Deliberations Were MisrepresentedThe Kentucky attorney general’s office said it would release the panel’s recordings after a grand juror contended in a court filing that its discussions were inaccurately characterized.Breonna Taylor's family and the lawyer Ben Crump, right, said the charges a Kentucky grand jury agreed upon in the…

Video shows alleged ballot harvesting in Ilhan Omar’s district

Fox News Back to Top ©2020 FOX News Network, LLC. All rights reserved. This material may not be published, broadcast, rewritten, or redistributed. All market data delayed 20 minutes. New Privacy Policy - New Terms of Use (What's New) - FAQ

A Once-in-a-Century Climate ‘Anomaly’ Might Have Made World War I Even Deadlier

(John Finney Photography/Moment/Getty Images) An abnormally bad season of weather may have had a significant impact on the death toll from both World War I and the 1918 Spanish flu pandemic, according to new research, with many more lives being lost due to torrential rain and plummeting temperatures. Through a detailed analysis of an ice…

Sean Hannity claims Dems ‘put all their eggs in the debate basket’ ahead of first Biden-Trump showdown

Joe Biden's campaign has "put all their eggs in the debate basket" after the Democratic nominee kept a low profile for much of the summer, Sean Hannity claimed Monday.“I believe his campaign team – they are seeing what we all see,” said the “Hannity” host, who noted that the former vice president's campaign wrapped up its public events…

Tucker: Amy Coney Barrett ‘represents everything that made this a great country,’ so Dems ‘despise her’

Supreme Court nominee Judge Amy Coney Barrett is causing an uproar among Democrats and according to Tucker Carlson, her happy family is what’s driving them crazy.“Democrats know Amy Coney Barrett’s life refutes the lies they have pushed on the rest of us for decades, [so] they must destroy her personally,” the “Tucker Carlson Tonight” host said…

Related Articles

Grand Jury Deliberations in Breonna Taylor Case Will Be Released

U.S.|Grand Juror in Breonna Taylor Case Says Deliberations Were MisrepresentedThe Kentucky attorney general’s office said it would release the panel’s recordings after a grand juror contended in a court filing that its discussions were inaccurately characterized.Breonna Taylor's family and the lawyer Ben Crump, right, said the charges a Kentucky grand jury agreed upon in the…

Video shows alleged ballot harvesting in Ilhan Omar’s district

Fox News Back to Top ©2020 FOX News Network, LLC. All rights reserved. This material may not be published, broadcast, rewritten, or redistributed. All market data delayed 20 minutes. New Privacy Policy - New Terms of Use (What's New) - FAQ

A Once-in-a-Century Climate ‘Anomaly’ Might Have Made World War I Even Deadlier

(John Finney Photography/Moment/Getty Images) An abnormally bad season of weather may have had a significant impact on the death toll from both World War I and the 1918 Spanish flu pandemic, according to new research, with many more lives being lost due to torrential rain and plummeting temperatures. Through a detailed analysis of an ice…