London — A study conducted in the United Kingdom shows how well some of the first large-scale real-world data are working. vaccination Protect people from catching “breakthroughs” Infectious diseases, and how well they protect breakthrough patients from serious illness. The result is encouraging.
Peer-reviewed study published Wednesday Lancet Medical journals help policy makers and epidemiologists bridge the big gap in understanding the true effectiveness of the three major vaccines used around the world.
For example, the US Centers for Disease Control and Prevention does not have adequate data on how many people were captured. COVID-19 (New Coronavirus Infection) After vaccination, it was decided to follow only severe and symptomatic symptoms in the spring .. Meanwhile, a UK study used mass test data to determine the number of breakthrough cases that actually occurred and how sick they were.
The vaccine was not intended to preventCompletely, but to reduce the rate of infection within the population, and most importantly, to reduce the severity of the disease in those who catch it. The study found that people who were completely vaccinated but infected with the coronavirus were almost twice as likely to be completely asymptomatic compared to the larger population.
Importantly, the chances of a fully vaccinated person infected with COIVD-19 being hospitalized with severe symptoms were reduced by more than two-thirds compared to unvaccinated coronavirus patients.The study also found a risk that breakthrough patients are suffering.The symptoms lasted for more than a month and were cut in half by a complete vaccination.
This is an up-to-date dataset that provides compelling evidence that vaccines work as intended.
Researchers at King’s College, London, and Harvard University in the United StatesOr AstraZeneca COVID-19 vaccine. Studies have shown that the risk of severe illness and hospitalization was significantly reduced after the first vaccination, but protection against serious illness and protection against catching breakthrough infections from the beginning increased with all doses.
Data collected from December 8, 2020 to July 4, 2021 show that more than 1.2 million adults who received the first dose suffered a breakthrough infection more than two weeks after obtaining the jab. It shows that less than 0.5% reported that. Of those who took both shots, less than 0.2% experienced breakthrough infections more than a week after taking the second shot.
“Among people who experienced a breakthrough infection, the probability that the infection was asymptomatic increased by 63% after the first dose and 94% after the second dose,” the study authors said. I wrote in The Lancet.
“The delta mutation is in a pandemic crisis as the number of cases increases worldwide. It does not compromise the fact that breakthrough infections are expected and these vaccines are functioning as designed. Save and prevent. Serious illness. ” “Other studies have shown that hospitalized COVID-19 patients have a mortality rate of up to 27%. Vaccination can significantly reduce that number by first moving people away from the hospital. Our findings emphasize that vaccines play a greater role. Efforts to prevent COVID-19 infections include wearing masks, frequent testing, and social distance. Other personal protection measures, such as, should also be included. “
The data also show that people living in low-income areas are at increased risk of breakthrough infections. This is probably due to the proximity of these communities to their neighborhoods and the low overall vaccination coverage. According to The Lancet, these risks were “most significantly associated with post-vaccination infection after the first dose and before the second dose.”
As has been consistently discovered since the first appearance of the coronavirus, age and all underlying illnesses, including heart, lung and kidney disease, are severe COVID-19, including vaccinated individuals. It seriously increases the risk of infection.
“The increased risk of breakthrough infections among the frail elderly, especially those living in care facilities, those requiring frequent visits to medical facilities, and others in poverty, is seen throughout the pandemic. It reflects that. It has a higher risk of exposure and is therefore more vulnerable to infection, “co-author of the study, also Dr. Rosepenfold of Kings College, said in Lancet. “Health policies designed to prevent infection, including policies regarding timing between first and second doses and potential booster shots, should prioritize these groups.”
The data used in the study did not distinguish between infections, Delta variant In other strains of coronavirus, the majority of UK cases were delta-infected at least in early June and began to spread rapidly in March.In the United States, Delta became the dominant stock in July and is now largely New case.
Studies have shown that the incidence of “breakthrough” infections with COVID-19 is low and that vaccinated people have fewer symptoms.
Source link Studies have shown that the incidence of “breakthrough” infections with COVID-19 is low and that vaccinated people have fewer symptoms.