Health & Fitness Young Americans made up A THIRD of hospitalizations during Delta wave
CDC: Effectiveness of vaccines against hospitalizations has waned
The COVID-19 vaccines effectiveness at preventing hospitalizations may fall to 75 percent over time, CDC data finds. They review the data ahead of the agency's decision on whether roll out booster shots.Vaccine effectiveness is preventing hospitalizations has fallen as low as 75 percent, from a high of 95 per cent that was first touted when the shots first became available in late 2020.
Younger adults made up a higher share of COVID-19-related hospitalizations during the Delta variant-fueled summer surge, a new Centers for Disease Control and Prevention () report finds.
The report, published on Friday, found that Americans aged 18 to 49 made up 35.8 percent of Covid hospitalizations during what is considered the 'Delta period.'
This is a sharp increase from the 24.7 percent of hospitalizations this age group made up in the pre-Delta period.
The rise was almost entirely felt by the unvaccinated, though, with 18-to-49-year-olds accounting for 26.9 percent of hospitalizations among people who had not received the jab in the pre-Delta period and 43.6 percent during the Delta period.
COVID cases are declining for the first time since June
For the first time in over two months, COVID-19 cases have declined over a two week period, signaling a potential end to the Delta variant-fueled summer surge of the virus.As of September 6, the U.S. is averaging 137,000 new daily cases nationwide, a nine percent decrease from the 151,000 case average two weeks ago on August 24.
Researchers say this data highlights the need for young adults - who are less likely to have received the Covid jab - to get the shots.
Theusing the COVID-19–Associated Hospitalization Surveillance Network, dubbed COVID-NET, a system that gathers Covid data nationwide for use in studies like this.
In total, 5,951 hospitalization from the 'pre-Delta' period and 1,664 from the 'Delta' period were included in the study.
The pre-Delta period included hospitalizations from January to June 2021, before the Indian-born variant became America's dominant strain.
Hospitalizations from July and August 2021 were considered to be a part of the Delta period.
Vaccine efficacy against infection fell after Delta became dominant
COVID-19 vaccine effectiveness fell against infection after the Delta variant became dominant in the U.S., but remained high against hospitalization and death. According to a new report published by the Centers for Disease Control and Prevention (CDC) on Friday, the shot's effectiveness against contracting Covid fell from 91 percent in April to 78 percent in July.However, the effectiveness against hospitalization and death due to the virus stayed above 90 percent.
All patients whose hospitalizations were included in the study were split into three age groups, those aged 18 to 49, aged 50 to 64 and those aged 65 or older.
In the pre-Delta period, the 65 and older age group accounted for the largest amount of hospitalizations, at 44.1 percent, with the 50-to-64 age group accounting for 31.2 percent and the 18-to-49 group making up 24.7 percent of Covid hospitalizations.
The numbers drastically shifted during the Delta period, though, and suddenly the 18 to 49 age group starting accounting for the largest share of hospitalizations.
Members of the youngest age group made up 35.8 percent of Covid hospitalizations during the Delta period.
People aged 50 to 64 made up 30.4 percent - the smallest share - with the 65 and older crowd making up 33.58 percent of hospitalizations.
This shift was entirely felt among unvaccinated people.
Former FDA head says Delta wave might be LAST surge of Covid pandemic
Provided no new variant emerges, former FDA chief Dr Scott Gottlieb, predicted Covid will become an endemic disease, meaning always present but transmitting at low rates.In an appearance on CNN on Thursday, Dr Scott Gottlieb said that - provided no new variant emerges - Covid is on its way to becoming an endemic disease.
Of the 5,900 cases detected during the pre-Delta period, 4,896 of the patients were unvaccinated.
Before Delta, unvaccinated people aged 18 to 49 made up 26.9 percent of hospitalizations, a figure that soared to 43.6 percent during the Delta period.
Hispanics and younger adults more likely to contract Delta variant
Adults between ages 18 and 44 accounted for more than half of positive Delta specimens at 55.3% compared to other age groups while Hispanic Americans made up 39.4% of infections.Researchers from the Centers for Disease Control and Prevention (CDC) found that the variant accounted for 95 percent of Covid cases that underwent genome sequencing at Kaiser Permanente Southern California (KPSC) as of July 21.
There was also a small uptick for unvaccinated people aged 50 to 64, from a 32.4 percent to 33.6 percent share of hospitalizations.
Older people had a steep drop in share of hospitalizations, though.
Unvaccinated Americans aged 65 or older only accounted for 22.8 percent of hospitalizations during the Delta period, down from 40.6 percent in the pre-Delta period.
The figures for vaccinated people, of which there were 389 hospitalized before Delta and 393 hospitalized after, remained steady when the highly contagious variant was introduced.
Researchers believe this sudden shift is due to the vaccination rates of each age group.
Almost every single American aged 65 to 74 has received at least one shot of a COVID-19 vaccine, and 93 percent of those 75 or older have as well.
Delta variant and behavior caused vaccine efficacy drop, NY DOH says
The Delta variant and behavior changes may explain why vaccines became less effective at protecting New Yorkers from COVID-19 infection this summer, according to the state DOH.DOH scientists used statewide immunization, testing, and hospitalization datasets to examine vaccine effectiveness trends during New York's Delta surge over summer 2021.
While these age groups are at a particularly high risk from the virus, the vaccines have proved effective at preventing hospitalization and deaths for the most part.
Comparatively, younger people have much lower vaccination rates.
Only 65 percent of Americans aged 18 to 24 have received at least one shot of a vaccine.
Just under 70 percent aged 25 to 39 have gotten the jab, and 77 percent of Americans aged 40 to 49.
Without the extra protection during the rise of the Delta variant, many younger people were unexpectedly hospitalized.
The death rate during the Delta period remained low, though, as researchers also found the Delta variant did not increase the likelihood of death among patients.
Since younger people are at lower risk of dying from the virus, even when hospitalized, not as many hospitalized people died during the Delta surge as had in previous Covid surges.
Now there's ANOTHER off-shoot of the Delta variant .
The new sub-strain, called AY.43, has already been spotted 8,138 times in England, according to the latest data from one of the country's largest surveillance centres (shown in yellow).The new sub-strain, called AY.43, has already been spotted 8,138 times in England, according to the latest data from one of the country's largest surveillance centres.