On August 27, 2021, people are lining up for a coronavirus disease (COVID-19) test on a mobile routine inspection vehicle in New York City.
Brendan MacDermid | Reuters
The United States has more than quadrupled Covid-19 cases and more than doubled hospitalizations last year on Labor Day weekend, despite having vaccinated 62% of the U.S. population at least once. I am going.
The United States and the world are far from where health officials expected and thought. We take 20 months for a pandemic, and more than 8 months have passed since the vaccine, which is about 95% effective, was launched.
Outbreaks are significantly worse with most measures than in 2020, and the United States is preparing for a tough fall season, but delta variants, vaccines, and open schools predict how pandemics will occur. It’s difficult to do.
“Currently, there is more uncertainty. Dynamic interactions between variants and vaccines, especially unvaccinated people, and a type of game changer for delta variants, much more about what autumn holds. It leads to uncertainty, “said the doctor. Barbara Taylor, Assistant Dean and Infectious Disease Specialist at the San Antonio Health Sciences Center, University of Texas.
The Centers for Disease Control and Prevention recommends unvaccinated Americans to travel on holiday weekends, and is concerned that festivals could cause another surge in some cases.
Towards Labor Day 2020, the United States has emerged from the summer surge, with an average daily number of cases of about 67,000 in July, with new cases per day in the week prior to Labor Day. Has exceeded an average of 41,000. The data is compiled by Johns Hopkins University. show. This week’s new cases reached their highest level since January, averaging 166,000 per day over the past seven days.
However, new cases are increasing at a much slower pace than in recent weeks, and many scientists predict that they will soon begin to decline. According to the data, new cases increased by 7% from last week, almost one-third of the 7-day surge of 26% just three weeks ago.
Lawrence Gostyn, director of the World Health Organization’s National and World Health Law Cooperation Center, said: “This was very surprising as we now have a very effective vaccine.”
However, the effectiveness of all three vaccines approved for use in the United States (Pfizer, Modana, Johnson & Johnson) has declined since they were first introduced. Scientists have found that protection diminishes over time. The highly contagious delta variant is also a game changer. According to the CDC, it spreads more easily and quickly than other variants and infects both unvaccinated and vaccinated people.
The viral load in the nasal cavity is so high that it is estimated to be 1,000 times higher than other strains, so Australian scientists say men followed cases of infection in the nasal cavity with exposure of only 5-10 seconds. increase. Authorities warn that a small proportion of fully vaccinated people who have been vaccinated with Covid can spread it as well as unvaccinated people, even in the asymptomatic case.Delta variants currently account for 99% of all new sequenced cases in the United States
“As we’ve seen in the evolution of Covid-19 over the last year and a half, Delta variants continue to throw us curves. I think the best advice is to be cautious,” says Dr. Nusheen Ameenuddin. .. A local pediatrician at the Mayo Clinic said in an interview.
The good news is that Delta appears to be running its course in the United States, and as vaccination rates rise and others acquire innate immunity after recovering from the virus, there is a shortage of new people to get infected. That’s what doctors and scientists say.
New hospitalizations only began to change after a steady increase over the past few weeks, with average daily hospitalizations for seven days declining 1.7% over the past week, according to CDC data. Still, according to the Department of Health and Human Services, more than 100,000 Americans are currently hospitalized, consistent with the levels seen in late January this year.
The big question is how long the immunity lasts. Studies have shown that the vaccine begins to become less effective about 2 months after the second shot and actually becomes less protective 5-8 months after full vaccination.
Dr. Isaac Bogotti, an infectious disease doctor at the University of Toronto, said, “Until sufficient community-level protection is available, this can undulate on a regular basis and is brought about by vaccination rather than recovery from natural infections. I hope. ” “We all want to end the pandemic, but it’s not. We’re nearing the end in vaccinated countries, but it’s not.”
U.S. heads to Labor Day with Covid vaccine, but far worse than 2020
Source link U.S. heads to Labor Day with Covid vaccine, but far worse than 2020