- Tram Ho
During a congressional hearing on Wednesday, Dr. Robert Redfield, director of the US Centers for Disease Control and Prevention (CDC) raised the medical mask he was wearing and declared that it was still is more effective than all COVID-19 vaccines in development.
“This mask protects me better against COVID even when I take the vaccine,” says Redfield. He explained that the most promising vaccine can only provide about 70% immunity, meaning it will not work in nearly a third of people vaccinated.
“If I were among the people who didn’t get an immune response, the vaccine wouldn’t protect me. But this mask does.”
Robert Redfield, director of the US Centers for Disease Control and Prevention (CDC)
A recent article in the New England Journal of Medicine reports that wearing a mask can increase the incidence of asymptomatic COVID-19 infection. The study authors argued that:
Since the mask can filter out a droplet containing the virus, it can act as exposure therapy. In it, the body is exposed to a small amount of SARS-CoV-2 virus and forms antibodies to deal with COVID-19. People infected with a small amount of the virus will then have no symptoms of serious illness.
” If this hypothesis is correct, then wearing a mask, whatever mask is currently accepted, may contribute to an increase in the incidence of asymptomatic SARS-CoV-2. ” , write research.
University of Chicago computational biologist Sarah Cobey explained to Yahoo News: ” The idea that mechanical barriers [such as masks] may be more effective than vaccines in stopping the spread of infectious diseases. Infection is not crazy “.
“It’s basically how we used to control cholera and other gut pathogens. The mechanical barrier we used was to improve plumbing instead of developing a vaccine. Please be especially effective “.
It is not clear if Redfield has a specific response to the New England Journal of Medicine study, but there is plenty of other evidence that masks can suppress the spread of the SARS-CoV-2 virus.
It must also be said that, in the early days of the pandemic, it was Redfield and the leading scientists in America who advised the people of this country not to wear masks.
The move comes from some officials worried that people rushing to buy and stock up masks will make the item become scarce. Doctors and medical staff in the hospital, who are frontline and most at risk for COVID-19 infection, may lack protective masks.
Americans were divided because they did not believe that masks worked against COVID-19.
Additionally, the novel nature of COVID-19 poses a situation where it was not scientists early in the pandemic that did not fully understand how it spreads through the air. With a much smaller size than the mask’s filament, the SARS-CoV-2 virus can completely pass through it and the mask is considered by many to be ineffective.
However, after a series of studies showing that COVID-19 is mainly spread most strongly via virus-containing droplets (much larger than mask holes) rather than airborne, the scientific basis of action. Mask prevention has been established.
In addition, with more and more epidemiological data and studies proving the effects of masks, the original CDC guidelines (which discourages all people including those without symptoms) have been removed.
Now, the US Centers for Disease Control and Prevention has supported and encouraged the entire population to wear masks in public.
That recommendation was again emphasized by Redfield in today’s hearing. “From a public health perspective, these masks are the most important tool we have. We have clear scientific evidence to back them up, and that’s how it’s protected,” he said. the best”.
“I can go even further by saying that these masks protect me from COVID more than vaccines ,” adds Redfield. According to him, the most promising COVID-19 vaccine is only 70% free from birth.
Immunization refers to the vaccine’s ability to induce an immune response to the virus. Other leading health experts, including White House advisor Dr. Anthony Fauci, said the chances of us getting a highly immunogenic COVID-19 vaccine are very small.
The US Food and Drug Administration (CDC) even says if a COVID-19 vaccine is 50% free of fertility, that means one out of every two vaccinated will be able to prevent the disease. a person doesn’t, they’ll license it right away.
According to the CDC, a vaccine that is 50% effective would be comparable to the current flu vaccine but much less effective than a single dose of measles vaccine, which is about 93% immunogenic.
Dr Anthony Fauci hopes the United States can get a COVID-19 vaccine with 75% fertility exemption. However, Redfield says that even if such a vaccine is released in the next two or three months, its supply will be “very limited”.
That means that they are preferred only to those who are particularly susceptible to illness or serious illness, including health workers, the elderly and those with underlying medical conditions such as cancer, diabetes, and cardiovascular disease. …
The average American will have to wait months until they have access to a vaccine. Redfield predicts that from now until the end of 2021, the United States will not be able to universalize COVID-19 vaccine to return to its normal pre-pandemic rhythm.
From now until then, every American should treat masks as close friends.
Refer to Yahoo
Source : Genk