Global Statistics

All countries
Updated on August 12, 2022 5:08 am
All countries
Updated on August 12, 2022 5:08 am
All countries
Updated on August 12, 2022 5:08 am

Global Statistics

All countries
Updated on August 12, 2022 5:08 am
All countries
Updated on August 12, 2022 5:08 am
All countries
Updated on August 12, 2022 5:08 am
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How Many Covid Vaccines Are There

Can Novavax Be Used As A Booster

Fact check: Why are there so many COVID vaccination breakthroughs? | DW News

The FDA is considering the authorization of Novavax as a primary series . If the FDA gives it the green light, it may very well become another option in the US booster catalog. Last fall, the FDA signed off on the mix-and-match approach to the authorized COVID-19 boosters, or a heterologous booster dose.

Once there’s data on using a vaccine like Novavax with mRNA vaccines, “There may be people that received three or four of the mRNA vaccines and might be interested in trying a different vaccine as part of a mix-and-match strategy,” Wortmann said.

“I think that the real advantage of the Novavax vaccine is to the field more broadly,” Kedl similarly said. “Because it now has one more vaccine platform to mix and match with the other vaccines.”

The information contained in this article is for educational and informational purposes only and is not intended as health or medical advice. Always consult a physician or other qualified health provider regarding any questions you may have about a medical condition or health objectives.

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University Of Queensland / Gsk

Type: S protein clamp

Stage: Pre-Clinical

Status: CEPI will coordinate engagements between GSK and entities funded by CEPI who are interested in testing their vaccine platform with GSKs adjuvant technology to develop effective vaccines against 2019-nCoV. The first agreement to formalize this arrangement has been signed between GSK and the University of Queensland, Australia, which entered a partnering agreement with CEPI in January 2019 to develop a molecular clamp vaccine platform, intended to enable targeted and rapid vaccine production against multiple viral pathogens. CEPI has extended this funding to work on a 2019-nCoV virus vaccine candidate, and access to the GSK adjuvant technology will now support this early stage research.

About: The University of Queensland is a public research university located primarily in Brisbane, the capital city of the Australian state of Queensland. Founded in 1909 by the state parliament, UQ is classed as one of the sandstone universities, an informal designation given to the oldest university in each state.

About: GSK is a science-led global healthcare company with a special purpose: to help people do more, feel better, live longer. GSK is the leading manufacturer of vaccines globally.

Type: S1 or RBD protein

Stage: Pre-Clinical

Status: It takes time and because you have to initially do an injection in a normal human volunteers, Dr. Hotez said. Show that it safe and then you proceed stepwise to show that it actually works.

Could Taking Two Different Vaccines Boost The Effectiveness

Currently, the Centers for Disease Control and Prevention recommends getting two doses of the same mRNA vaccine unless the supply does not allow for them to get the second dose of the same brand.

People are also recommended to get the same brand for the third dose of mRNA vaccine if they are receiving it because of an immune-compromising condition. However, if they are receiving a second dose following J& J/Janssen or a third dose following mRNA as a booster, they can get a different type if they so choose.

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Can I Get The Second Dose Of Covid

Yes. It is okay to get the second dose in the other arm as the immunity generated by the first dose will be circulating in your body watching for a potential exposure.

Indeed, individuals who experience a delayed reaction at the injection site are recommended to get the second dose in the opposite arm.

Who Should Not Get The Covid

Over half of adults over 50 say theyll get vaccinated against COVID

Most people are able to get COVID-19 vaccine. But, a few groups of people either should not get the vaccine or should get a particular version. Likewise, some individuals should consult with their doctor or follow special procedures.

People who should NOT get any COVID-19 vaccine:

  • Those younger than 5 years of age
  • People currently isolating or experiencing symptoms of COVID-19 these people can get vaccinated once they are finished isolation and their primary symptoms have resolved.

People who cannot get the mRNA vaccine , but may be able to get the J& J/Janssen vaccine:

  • Anyone with a previous severe or immediate allergic reaction to a COVID-19 mRNA vaccine dose or an mRNA vaccine component.
  • Anyone with a known allergy to polyethylene glycol

People who cannot get the adenovirus vaccine , but may be able to get the mRNA vaccine :

  • Anyone with a previous severe or immediate allergic reaction to the COVID-19 adenovirus vaccine or one of its components
  • Anyone with a known polysorbate allergy
  • Those 5-18 years of age can get the Pfizer mRNA vaccine, but not other versions .

People who may get the vaccine after considering risks and benefits and/or consulting with their healthcare provider:

People who should follow special procedures

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There Are Four Types Of Covid

The fight against COVID-19 has seen vaccine development move at record speed, with more than 170 different vaccines in trials. But how are they different from each other and how will they protect us against the disease?

There are more vaccine candidates simultaneously in the pipeline for COVID-19 than ever before for an infectious disease. All of them are trying to achieve the same thing immunity to the virus, and some might also be able to stop transmission. They do so by stimulating an immune response to an antigen, a molecule found on the virus. In the case of COVID-19, the antigen is typically the characteristic spike protein found on the surface of the virus, which it normally uses to help it invade human cells.

What Steps Are Taken To Help Make Sure The Covid

Safety is always a top priority as federal agencies work with vaccine manufacturers and independent scientific organizations to develop, study, authorize and approve new vaccines. Here are some of the steps taken for COVID-19 vaccines, as well as other vaccines:

Demographics of the COVID-19 Vaccine Trials

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Where Can I Get The Vaccine

COVID-19 vaccines are generally widely available. As such, we recommend checking for vaccine at your providers office, local pharmacies, healthcare facilities, mass vaccination sites or mobile clinics. For children 5 to 11 years of age, we recommend contacting facilities in advance to ensure that they are vaccinating that age group.

Study By Federal Immunity Task Force Finds About 7 Per Cent Of Canadians Had Gotten Covid Before December By The End Of May It Was 56 Per Cent

COVID-19 vaccine for kids 5 and under could be authorized in February

May Warrentimerupdate

More than 17 million Canadians have had some version of Omicron, in a tsunami of infections over the past five months, suggests a new wide-ranging report.

But recent evidence suggests that doesnt mean they arent ever going to get it again, with new versions of the variant causing more reinfections.

Omicron was really able to evade our immunity from vaccination and from previous infection, said Dr. Catherine Hankins, a Montreal-based epidemiologist and co-chair of the COVID-19 Immunity Task Force, which was launched by the federal government in 2020 to study coronavirus immunity.

People should not assume they have good protection because they just got infected, says Hankins, who also a McGill University professor. This is not the case, and thats because its not the same virus coming back that theyre being exposed to, its different enough.

The study analyzed samples from blood donors, labs and research participants, to get a picture of the disease in the community, at a time when testing has been scaled back significantly.

It found only about seven per cent of Canadians had antibodies against COVID before Omicron, but that about 56 per cent had them by the end of May, suggesting that more than 17.5 million Canadians were infected in a five-month period, since December 2021.

And thats partly to do with the virus itself which is constantly changing, looking for ways to spread a little more, get a little further.

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What Share Of The Population Has Been Partly Or Fully Vaccinated Against Covid

The following charts show the breakdown of vaccinations by those that have been partly or fully vaccinated. A person is considered partly vaccinated if they have received only one dose of a 2-dose vaccine protocol. A person is considered fully vaccinated if they have received a single-dose vaccine or both doses of a two-dose vaccine.

This data is only available for countries which report the breakdown of doses administered by first and second doses.

Clinical Trial Demographic Information

Clinical trials for the Pfizer-BioNTech vaccine in people ages 16 years and older included people from the following racial and ethnic, age, and sex categories:


  • 3% other races, multiracial, or race not reported
  • < 1% Native Hawaiian or Other Pacific Islander
  • < 1% American Indian or Alaska Native


  • 73% not Hispanic or Latino
  • 26% Hispanic or Latino

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Dose And Route Of Administration


Pfizer-BioNTech Comirnaty COVID-19 vaccine

There are two formulations of Comirnaty authorized for use in individuals 12 years of age and older.

  • Vials with a purple cap and a purple label border: DILUTE with 1.8 mL 0.9% Sodium Chloride Injection, USP prior to use.
    • Each dose is 0.3 mL after dilution, containing 30 mcg of SARS-CoV-2 spike protein mRNA.
  • Vials with a gray cap and a gray label border: DO NOT DILUTE
  • Each dose is 0.3 mL, containing 30 mcg of SARS-CoV-2 spike protein mRNA.

The dose for the Pfizer-BioNTech Comirnaty COVID-19 vaccine is unique compared to that of most routine vaccinations. Special precaution should be taken to ensure the correct dose is taken from the multi-dose vial.

Pfizer-BioNTech Comirnaty COVID-19 vaccine

This formulation has an orange vial cap and orange label border and is authorized for use in those 5 to 11 years of age.

Dilute with 1.3 mL 0.9% Sodium Chloride Injection, USP prior to use.

Each dose is 0.2 mL after dilution, containing 10 mcg of SARS-CoV-2 spike protein mRNA.

The dose for the Pfizer-BioNTech Comirnaty COVID-19 vaccine pediatric formulation is unique compared to that of most routine vaccinations. Special precaution should be taken to ensure the correct dose is taken from the multi-dose vial.

Moderna Spikevax COVID-19 vaccine

Each dose is 0.5 mL, containing 100 mcg of SARS-CoV-2 spike protein mRNA.

A booster dose for select populations is 0.25 mL, containing 50 mcg of SARS-CoV-2 spike protein mRNA.

No dilution is required.

Can I Choose Which Vaccine I Want To Take

Covid Vaccines for Kids Are Coming, but Not for Many Months

Perhaps, when the supply of vaccines from all manufacturers becomes readily available. The vaccines will roll out across the country as they are approved for use by the FDA. Once there are multiple vaccines available, you will be able to inquire with providers to see which vaccine they have on hand, but individual providers may offer or only make one vaccine option available.

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Do I Still Have To Wear A Mask If I Get A Vaccine

The CDC continues to monitor the spread of COVID-19 and makes recommendations for wearing face masks, both for those who are fully vaccinated as well as people who are not fully vaccinated.

The CDC also recommends that masks and physical distancing be required when going to a doctors office, hospital or long-term care facility, including all Johns Hopkins hospitals, care centers and offices.

Johns Hopkins Medicines mask safety guidelines have not changed, and we still require everyone to wear masks inside all of our facilities.

How Likely Is Reinfection

BA.4/BA.5 appear to be masters at evading immunity. This increases the chance of reinfection.

Reinfection is defined as a new infection at least 12 weeks after the first. This gap is in place because many infected people still shed virus particles many weeks after recovery.

However, some unfortunate people get a new infection within the 12 weeks, and therefore are not counted.

Likely, there are now tens of thousands of Australians into their second or third infections, and this number will only get bigger with BA.4/5.

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How Many Coronavirus Vaccines Are There

There are a number of vaccines still undergoing trials around the world, but only three have been approved for use in the UK so far.

In late 2020, the Pfizer/BioNTech vaccine was the first to be approved for use in the UK.

The Oxford University/AstraZeneca vaccine was next to be approved, followed by the Moderna vaccine in early 2021.

The Novavax jab was found to be effective against the Kent Covid variant.

He told BBC Radio 4’s Today that the results from the trial were “yet another great step forward for the UK”.

Professor Heath added: “I think the technology we have both with this vaccine, the Novavax technology, and the other vaccines, it is such that they can adapt quickly so we can expect to see, if required, new vaccines or bivalent vaccines, where two different strains are joined together in the one vaccine.

“And that now can be done at pace so that we can keep up with these variants should they prove to be difficult to prevent with the vaccine that we have at the moment.

“We’ve seen for the UK that the UK variant can be successfully prevented with this vaccine, which is great.

“Yes, the South African variant is more difficult and hopefully there will not be more variants but we may expect to see some as time goes on.”

Viral Vector Vaccine Effectiveness

How many COVID-19 vaccine doses have been administered at Houston hospitals?

The large-scale clinical trials of the J& J vaccine found that a single vaccine dose was 66.9 percent effective for preventing moderate to severe or critical COVID-19.

Clinical trials of the AstraZeneca vaccine found that overall vaccine effectiveness after two doses was 70.4 percent .

The arrival of the Omicron variant has hit viral vector vaccines pretty hard. However, receiving a booster with an mRNA vaccine can help.

One of the 2022 studies discussed earlier also looked at the effectiveness of the AstraZeneca vaccine against the Omicron variant. This studys findings were as follows:

  • Two doses. No effect against the Omicron variant was seen from 20 weeks after the second dose.
  • Two doses plus Pfizer booster. Vaccine effectiveness rose to 62.4 percent 2 to 4 weeks after a Pfizer booster dose but dropped to 39.6 percent after 10 or more weeks.
  • Two doses plus Moderna booster. Vaccine effectiveness increased to 70.1 percent 2 to 4 weeks after a Moderna booster dose but dropped to 60.9 percent in weeks 5 to 9.

Protein subunit vaccines are pretty straightforward. They contain a purified protein from a virus that the immune system can see and respond to. In the case of the novel coronavirus, this protein is the spike protein.

Protein subunit vaccines work in the following way:

  • The purified spike protein enters the body after being injected into the upper arm muscle.
  • Cells of the immune system encounter the spike protein and recognize it as foreign.
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    Can I Still Get Vaccinated If I Have A Cold

    People with mild cold-like symptoms are not prevented from getting the vaccine. However, if they are not feeling well, their symptoms just started, or their symptoms are getting worse, they may want to delay vaccination until they feel better otherwise, they might not be able to tell effects of illness from those of the vaccine. If they are uncertain, they should speak to their doctor, who has the benefit of their medical history and will be in the best position to help them weigh the potential pros and cons.

    What About A Third Dose For Immunocompromised

    The FDA authorized third doses of the Pfizer and Moderna vaccines for people who are immunocompromised and may not have developed a sufficient immune response after their first two doses. This includes people undergoing treatment for certain cancers, organ transplant recipients taking immune suppressing drugs, and others on immune therapies. Most vaccination sites are offering 3rd doses along with initial doses and boosters. Read OHA’s for more information.

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    Can I Get The Covid

    In the U.S., the CDC recommends waiting until COVID-19 symptoms go away and the individual is done isolating. However, they indicate that it is okay to get the COVID-19 vaccine shortly after recovering from the disease as long as the patient was not treated with antibody-based treatments .

    Due to limited supplies of vaccine in some countries and the experience that people who recently had COVID-19 rarely get re-infected in the months immediately after recovery, some areas may be delaying vaccination of recently recovered individuals. As such, we recommend talking with your healthcare provider or health officials to see what the recommendations are in your area.

    Protein Subunit Vaccine Effectiveness

    Chart reveals how many people worldwide have had COVID vaccine

    A large-scale clinical trial of the Novavax vaccine found that its effectiveness was 90.4 percent.

    However, this trial was performed in early 2021, before the arrival of the Delta and Omicron variants. Detailed data on the Novavax vaccines effectiveness against these variants havent been published yet.

    So far, Novavax has released a statement based off of early data that antibodies from the first two-dose vaccine series have some effectiveness against the Omicron variant. Protection also increased after a booster dose.

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    Sanofi Pasteur / Regeneron Pharmaceuticals Inc

    Type: S protein

    Stage: Pre-Clinical

    Status: Sanofi and Regeneron trial arthritis drug as coronavirus treatment. Groups join effort to repurpose existing remedies in fight against global pandemic

    About: Sanofi S.A. is a French multinational pharmaceutical company headquartered in Paris, France, as of 2013 the worlds fifth-largest by prescription sales. The company was formed as Sanofi-Aventis in 2004, by the merger of Aventis and Sanofi-Synthélabo, which were each the product of several previous mergers.

    About: Regeneron Pharmaceuticals, Inc. is an American biotechnology company headquartered in Eastview, near Tarrytown, New York. The company was founded in 1988. Originally focused on neurotrophic factors and their regenerative capabilities, it branched out into the study of both cytokine and tyrosine kinase receptors.

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