Posted on 06/16/2021 5:08:54 PM PDT by lightman
June 16 (UPI) -- A single dose of one of the two-shot COVID-19 vaccines prevented an estimated 95% of new infections among healthcare workers two weeks after receiving the jab, a study published Wednesday by JAMA Network Open found.
The first dose of the Moderna vaccine was 78% effective at preventing new cases just one week after clinical staff were inoculated, the data showed.
Still, 39, or just over 1%, of the nearly 3,400 health workers who received the vaccine later became infected with the virus, said researchers, from the VA Boston Healthcare System.
These "breakthrough" infections occurred at least 14 days after they had received their first dose, and 27 of them developed symptoms of the disease. RELATED Study: COVID-19 vaccine booster dose safe, needed for transplant patients
"[Even] at the height of Boston's winter surge, ... rapid first-dose vaccination of healthcare workers ... helped sustain healthcare delivery," study co-author Dr. Michael E. Charness told UPI in an email.
However, "full vaccination is still recommended for sustained immunity and protection against emerging variants," said Charness, chief of staff at the VA Boston Healthcare System.
Both two-dose COVID-19 vaccines, from Pfizer-BioNTech and Moderna, offer more than 90% protection against serious illness from the virus, research found. RELATED Expert: COVID-19 vaccines safe for kids, may allow return to 'normal life'
They work by using modified genetic material from the coronavirus to stimulate the production of antibodies, or cells that fight off infections, by the immune system, according to the Centers for Disease Control and Prevention.
This essentially primes the immune system to respond when or if a vaccinated person is exposed to the virus, the agency says.
Although studies have found that one dose of either of the two-shot vaccines offers at least some protection against the virus, they are most effective among those who are considered "fully vaccinated," defined as two weeks after receipt of the second shot. RELATED CDC: 2-dose vaccines reduce COVID-19 infection risk by 91%, limit virus spread
For this study, Charness and his colleagues assessed the effectiveness of one dose of the Moderna vaccine in more than 4,000 healthcare workers at the VA Boston Healthcare System during the winter spike of COVID-19 cases in the Boston area.
Just under 3,400, or about 84%, of the staff had received one dose of the vaccine by the end of the 42-day study period on Feb. 1, the researchers said.
Among the included healthcare workers, 107 new COVID-19 cases were reported during the study period, the data showed.
Of these, 39 were in those who had received their first dose and 68 occurred in those who had not received a shot, according to the researchers.
"Vaccine effectiveness may vary depending on the age, exposure and health risks of a population and transmissibility of variants," Charness said.
"Our work was done at the time the [original Wuhan variant was dominant, [and] efficacy might be different with the currently prevalent variants," such as the B.1.1.7 or Delta strains, he said.
Why make 1 trillion when you ca make 2. Fauci approves.
“...Vaccinations provide zero immunity.”
Totally agree with you, and Louis Pasteur was a filthy crook! Also, it was the aliens who cured humans on Earth from poliomyelitis not so long ago!
It's even better without the shots.
injection cleaner may boost performance and correct the sluggishness...
Really? We still have regular mumps outbreaks? Measles? Polio? Smallpox? Etc.?
If ignorance is bliss, you are in paradise.
Right. Sure.
As soon as a COVID vaccine has been proved and is not in the state of being for Emergency Use, then I might consider it. I just wished the anti-body tests were readily available and not overly expensive.
*approved
I wish positive antibody test results had the same “status” as “fully vaccinated”.
COVID recovery is BETTER than vaccinated.
Those who have had the CoupFlu suffered enough...unmask them!
Doesn’t matter for the efficacy calculation if you have a reasonable sample size.
Turned me into a newt.
But I got better...
Just joking, I'm not taking this shot. I don't trust the people pitching it, nor their rationale for pitching it. I hope it works for you, and the others who have taken it.
I'll stick with the anecdotal treatments (Vitamin D3, zinc, quercetin, HCQ, ivermectin)...
Um, um, um. Love me some propaganda in the evening. Delish!
Colloidal silver
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Correct. I have been using colloidal silver 20 years, since 2000, 10-14 PPM self made, haven’t been to a doctor for 20 years ( except for injuries, stitches, concussion, broken bones, and appendicitis)...crazy they tell me, but at 62 I don’t plan on seeing a doctors office for another 20 unless they have to carry me in. It works.
unmasked life is great.
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I agree and I never took the experimental toxins into my bloodstream
Second Moderna: sore left deltoid for two days.
“Unmasked life without a vaccine is great too. Just sayin’.”
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I agree. Both the vaccinated and those choosing to not be vaccinated need to put this era of unnecessary and ineffective masking behind us. Above all we need to free our children from their “training masks” effective only for instilling fear and timidity in our kids.
Surgery successful but the patient died.
That was 10 minutes I’ll never get back, thanks to an F’d up headline.
I kept looking for an unvaxxed control group. LOL.
“I get 5 bars on my cell phone”
I’ll see your 5 bars and raise you one Wi-fi icon.
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