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Updated on June 22, 2022 11:26 pm
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Updated on June 22, 2022 11:26 pm
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Updated on June 22, 2022 11:26 pm

Global Statistics

All countries
Updated on June 22, 2022 11:26 pm
All countries
Updated on June 22, 2022 11:26 pm
All countries
Updated on June 22, 2022 11:26 pm
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Does The Covid Vaccine Protect Against The Delta Variant

Will Johnson & Johnson Recipients Need A Booster

How effective are vaccinations against the new COVID variants? | COVID-19 Special

According to the joint statement from the Health and Human Services , Food and Drug Administration , and the Centers for Disease Control and Prevention , booster shots are likely needed for those who were vaccinated with the Johnson & Johnson vaccine. However, they are waiting on more data before making an official recommendation.

“It is possible that people will boost their immune responses after a second shot of Johnson & Johnson or after a boost with a different type of vaccine,” Liu says.;

Earlier this month, the San Francisco Department of Public Health allowed Johnson & Johnson vaccine recipients to receive a supplemental mRNA vaccine dose should they wish to do so. Health officials made it clear that this is not a recommendation nor a new state requirement, but rather, an accommodation for patients who have consulted with their physician about a supplemental dose.

There is no published data to suggest that a hybrid vaccination schedule would afford better protection yet, Venkatesh says. There are ongoing trials that we should expect results from this fall regarding whether receiving one vaccine before another type of vaccine is better.

A study preprint, which has not been peer-reviewed and should not be used to guide clinical practice, found that a first dose of the AstraZeneca vaccine followed by a second dose of Pfizer-BioNTech vaccine induces higher antibodies than a two-dose AstraZeneca vaccination series.

Explainer: Are Chinese Covid

Doses of the Chinese Sinopharm vaccine against the coronavirus disease are seen at the Biblioteka kod Milutina restaurant in Kragujevac, Serbia, May 4, 2021. REUTERS/Marko Djurica

BEIJING, June 29 – Many countries from China to Indonesia and Brazil rely heavily on Chinese vaccines to inoculate their people against COVID-19, but there are growing concerns about whether they provide enough protection against the Delta variant, first identified in India.

Below are views from China’s health experts about the effectiveness of home-grown vaccines against the Delta, which is becoming the globally dominant variant, and virus preventive measures China is taking.


China has not provided vaccine effectiveness results against the variant based on large-scale data in clinical trials or real-world use, nor offered detailed information from lab tests, but Chinese experts are urging people to get inoculated as soon as possible.

The lack of detailed data on the Chinese vaccines against the Delta has hobbled any meaningful peer reviews by foreign experts.

Researchers found that Chinese vaccines are somewhat effective in reducing the risk of symptomatic and severe cases caused by Delta, Zhong Nanshan, a epidemiologist who helped shape China’s COVID-19 response, told reporters.

It is based on analysis of infections in Guangzhou city, and Zhong told Reuters the results are preliminary and the sample size is small.


The Us Virus Surge Appears To Be Declining In Some States But Deaths Are Still Increasing

New coronavirus cases and Covid hospitalizations across the United States have started to show signs of decline, although they remain far higher than they were earlier in the summer, and the number of new deaths is still increasing.

As the Delta variant has ripped through unvaccinated communities, reports of new deaths have reached an average of more than 1,900 a day, up nearly 30 percent in the past two weeks, according to a New York Times database. Approximately one in every 500 Americans has died from the disease.

The pace of vaccinations remains relatively sluggish, with 64 percent of eligible people in the United States fully vaccinated, according to federal data.

Vaccination remains powerfully protective against severe illness and hospitalization because of Covid-19 in the vast majority of people in all of the studies published so far, experts say. Health officials say that most of the patients who are being hospitalized and dying are not vaccinated, while areas with higher rates of vaccination have generally fared better. Over the summer, masks were recommended indoors for everyone, regardless of vaccination status, in virus hot spots and in schools across the country.

Conditions are beginning to improve in some hard-hit regions. Southern states like Florida, Mississippi and Georgia are seeing some declines in new cases and hospitalizations.

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How Can I Still Get Infected If Ive Already Been Vaccinated

The vaccine is not a bug zapper, explains Amesh Adalja, a physician and senior scholar at the John Hopkins Center for Health Security. What he means is that at first the virus isnt completely neutralized like a squashed bug. When the SARS-CoV-2 virus enters the body of a vaccinated person it takes some time before the immune system is alerted to the intruder and antibodies can spring into action. While the virus can enter the body, the immune response generated by vaccination means it usually cant set up shop in cells and replicate as it would in an unvaccinated person. The virus is circulating out there in the community amongst people and you’re going to come into contact with it, he says. What we want the vaccine to really do is prevent serious disease, hospitalization and death. Everything else is kind of gravy.

Do Vaccinated People Spread The Virus

Pfizer COVID

Vaccines aren’t meant to prevent infection. Their strength is in preventing the infection from making people sick and landing them in the hospital.

Most breakthrough infections among fully vaccinated people tend to be mild or to occur without symptoms. What remains unknown is whether an unsuspecting carrier can spread the virus to vulnerable people, such as the unvaccinated, children under age 12 or those with compromised immune systems.

Goodman said infected people who have been fully vaccinated probably have less virus in their system and therefore are probably less likely to transmit it to others. The time person is contagious is also probably shorter with vaccination, he said.

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Viral Load And Transmission

There is also another considerationthe role viral load may play in transmission. A study published in February 2021 in The Lancet Infectious Diseases found that the viral loadthe amount of virus in a persons body is a critical factor in the transmission of SARS-CoV-2.

Specifically, the study concluded that those with higher viral loads are more likely to transmit the virus to others. In March, another study from Israel found that the Pfizer-BioNTech vaccine, even after just a single dose, significantly reduced viral loadwhich suggests that it may also lower the risk of transmission. But it did not evaluate whether vaccinated people could transmit the virus, even if their viral loads were reduced. Nor did it take into account the Delta variant.

More science will certainly emerge on transmission, as the Delta variant circulates and as more people become vaccinated, and hopefully public guidance will follow the science,” says Dr. Meyer.

A recent study, which has not yet been peer-reviewed, demonstrated that people infected by the Delta variant had viral loads roughly 1000 times higher than those infected by the initial strain of the virus.

“The higher viral loads may play a role in increasing the risk of transmission, because each droplet can be packed with more virus,” says Dr. Meyer.

But the extent to which it does so in unvaccinated and vaccinated people is still unclear.

New Yorks Governor Orders The Release Of 191 Detainees From Crowded Rikers

Responding to an escalating crisis inside New York Citys notorious Rikers Island jail complex, Gov. Kathy Hochul on Friday signed a measure that will lead to the release of about 200 detainees, many of them being held for parole violations.

The law, known as the Less is More Act, is intended to ease crowding in the jail at a time when severe staffing shortages at the citys Department of Correction have led to unsafe and unsanitary conditions for detainees and guards. Ten people have died at Rikers since December, several by suicide.

Even though the law does not go into effect until March, Ms. Hochul said she was directing the board of parole to immediately release 191 people who qualify from Rikers Island. They were expected to be released on Friday.

Ms. Hochul also said an additional 200 people serving sentences would be moved from Rikers Island to state prisons over the next five days to ease the burden on the city jail.

But the legislation will still leave Rikers far more crowded than it was last spring, when a wave of releases amid the pandemic dropped the population below 4,000. As of Friday, more than 6,000 people were being held at the jail.

Only 36 percent of detainees at the jail are fully vaccinated, according to city data.

Chelsia Rose Marcius

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Low Vaccine Uptake Driving Up Infections

The unvaccinated population is at high risk for infection. If this variant continues to move quickly, especially in areas of low vaccination rates, the U.S. could see a surge in SARS-CoV-2 infection, said Dr. Miriam Smith, chief of infectious disease at Long Island Jewish Forest Hills Teaching Hospital in Queens, New York City.

CDC Director Dr. Rochelle Walensky issued a warning on this potential surge earlier this month.

In a press briefing, she said preliminary data suggested that 99.5 percent of the people who died from COVID-19 since January were unvaccinated.

We know that the Delta variant is currently surging in pockets of the country with low vaccination rates, she said.

In Missouri, which has a vaccination rate of nearly 43 percent, confirmed coronavirus infections surged in July.

In contrast, Vermont reported only 94 cases for the past day and currently has one of the highest vaccination rates in the country at 69 percent.

This echoes findings from a U.K. study that found the Delta variant twice as likely to lead to hospitalization, and both the AstraZeneca-Oxford and Pfizer-BioNTech COVID-19 vaccines being effective in reducing this risk.

We also know that our authorized vaccines prevent severe disease, hospitalization, and death from the Delta variant, Walensky said.

Dr. Theodore Strange, the interim chair of medicine at Staten Island University Hospital in New York, said the data supports this.

States Resume Vaccination Push After Busiest Holiday Weekend Since Pandemic

How do Colorado health officials know COVID vaccines protect against the Delta variant?

They also provide a limited picture of all the ways the immune system works against Covid-19, because they measure only antibody response. Certain cellular responses also play key roles. T cells, for example, help by killing infected cells and harnessing the power of other immune cells in the fight against viruses. Lab studies don’t usually measure T-cell response.

The second and maybe more important way to determine vaccine effectiveness is by simply observing what’s happening in the real world in real time.

“It’s very hard to translate laboratory data into ‘what’s going to happen if I’m vaccinated and someone sneezes on me and spreads delta all over my face?'” said Dr. David Wohl, a professor of medicine in the infectious diseases division at the University of North Carolina at Chapel Hill, who runs UNC’s vaccine clinics.

That’s why it’s important for scientists to look to places like the United Kingdom, where the delta variant accounts for nearly 100 percent of current Covid-19 cases. Despite having higher vaccination rates than the U.S. 68 percent in the U.K. have had at least one dose, compared to just under 55 percent in the U.S. cases are rising in the U.K.

“The only real difference between us and them is delta,” Wohl said. “I’m really worried that what’s going on in the U.K. is precisely what’s going to happen here.”

“If you’re waiting for some magical moment” to get vaccinated, he said, “this is it.”

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What Is The Covid Vaccination Rate In Iowa

About 49% of all Iowans had been fully vaccinated by the end of July, according to the federal Centers for Disease Control and Prevention. That included about 58% of all Iowans 12 or older, who are eligible for the vaccine.

Both figures were near the national average.

About 86% of Iowans 65 or older were fully vaccinated by late July.;

Gov. Kim Reynolds said in April that she hoped 75% of Iowa adults would be vaccinated by the end of June. The state fell significantly short of that mark, as demand for vaccines plummeted here and across the country. Just 65% of Iowa adults had received at least one dose of the vaccine by late July.;

Vaccinated People More Wary Of Delta Variant Than Unvaccinated

Despite the risk;the delta variant;poses to the unvaccinated, it’s the people inoculated against COVID-19 who are more concerned about the highly contagious version ;and more likely to change their behavior, according to a;new poll released Wednesday. Vaccinated adults are nearly twice as likely to worry that new variants such as;delta will worsen the pandemic nationally and locally, according to the latest tracking poll from the Kaiser Family Foundation.

The telephone survey of 1,517 adults was conducted from July 15-27, before the CDC said vaccinated people should mask up indoors;in areas with substantial levels of COVID-19 transmission.;About one in five unvaccinated adults said variants have made them more likely to get vaccinated.

Seeing their friends get sick and local hospitals fill up again with COVID patients may speed them;along,;foundation CEO Drew Altman said.

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How Effective Are The Covid Vaccines Against The Delta Variant

Vaccine efficacy has been a main question as the delta variant continues to spread around the country.

Health experts have said that a majority of hospitalizations and deaths associated with the variant in recent months are almost entirely in unvaccinated individuals. The CDC has said the risk of infection is 8x higher in the unvaccinated than the vaccinated, and the risk of hospitalization or death is 25x higher.

But is one better than the other at protecting against breakthrough infections in vaccinated populations?

Researchers in Belgium directly compared the Pfizer and Moderna COVID-19 vaccines by testing the antibodies of 2,500 health care workers after two doses of both vaccines.

The study found the Moderna vaccine produced more than double the antibodies compared to Pfizer, but doctors urge caution.

Antibody level itself is interesting, but it doesnt necessarily lead to a significant difference in;the way the vaccine is performing, said Dr. Allison Arwady, Commissioner of the Chicago Department of Public Health.

Another study to consider when comparing vaccines is one from the Mayo Clinic earlier this month, which is awaiting a full review.

That study found the risk of suffering a;breakthrough COVID-19 infection;with the delta variant after being fully vaccinated with the Moderna vaccine may be much lower than the risk for those who received the Pfizer vaccine.;

Is The Delta Variant More Dangerous Than Previous Variants

Does the Moderna Vaccine Protect Against the Delta COVID ...

As of now, there is no evidence that the Delta variant makes people more severely sick, but it is around twice as contagious as the original SARS-CoV-2 virus. This is in part because its better at hiding from the bodys immune system through mutations on the spike protein, which help it evade detection by the army of virus-fighting antibodies produced by the vaccine. It is also more contagious because people tend to carry around more particles of the virus in their nose and throat, making it easier to transmit to others. Finally, there is some evidence that it has a shorter incubation period, which means people get infected faster and so its harder to track cases before more infections occur.

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I Got The Johnson & Johnson Shot Am I Protected Against The Delta Variant

The jury is still out on this one.

In early June, researchers tested the serum of people vaccinated with the J&J vaccine against a variety of variants of concern, and found its performance suffered very little against the Beta, Gamma and Epsilon variants that were first detected in South Africa, Brazil and California, respectively. But the Delta variant wasnt included in the tests.

Johnson & Johnson is now reporting that in a lab study, the serum of eight people who got the companys vaccine mounted a strong immune response to the Delta variant. But they didnt say just how strong, and the paper presenting those results hasnt been posted yet.

The J&J vaccine bears a strong resemblance to the AstraZeneca vaccine, which has been widely used in the United Kingdom and was tested against the Delta variant there. In that study, getting both doses was 60% effective at reducing the risk of COVID-19 caused by Delta.

In L.A. County, vaccination rates are lower among Black and Latino residents. Health officials fear a disproportionate rise in COVID transmission.

The J&J vaccine will have to be tested against the Delta variant in larger studies to get a clearer picture of the protection it provides. Johnson & Johnson is now testing a two-shot regimen. If this provides strong protection against Delta, then booster shots may be in order.

Foreign Visitors To Us May Be Required To Get Vaccine

Nearly all foreign visitors will;be required to be;vaccinated against COVID-19 before entering the U.S., according to a plan the Biden administration is working on, The Associated Press reported.

The requirement would come as part of the administrations phased approach to easing travel restrictions for foreign citizens to the country. No timeline has yet been determined, as interagency working groups study how and when to safely move toward resuming normal travel.

The administration has kept in place travel restrictions that have severely curtailed international trips to the U.S., citing the spread of the delta variant of the virus.

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