Vaccination produces a much stronger and more consistent immune response than infection.
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If you’ve already had the coronavirus and recovered, you might be tempted to give the vaccine a pass. A scientist explains why the shot offers the best protection against future infection.
Gaston Ramon, a French vet, discovered vaccine adjuvants.
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Adjuvants have been giving vaccines their oomph since 1925.
Adolescents could soon be eligible, but vaccine trials are just getting started for younger children.
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Early test results look promising, and Pfizer has asked the FDA to review and authorize its vaccine for use in teens. That doesn’t mean putting away the face masks, though.
Scientists around the world are trying to come up with universal coronavirus vaccines to combat the emergence of variants. But what are these vaccines and are they even possible?
The AstraZeneca vaccine is already in use in many places.
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AstraZeneca just announced results from its US-based trial. It found the vaccine to be 79% effective and safe for use, despite recent concerns around reports of blood clots.
A pharmacist prepares to vaccinate health-care workers at the Klerksdorp Hospital, South Africa, on February 18 2021.
Australia has joined a handful of countries resisting a push to relax intellectual property rules related to COVID vaccines.
As immunisation emerges as the world’s primary weapon to combat COVID-19, much more work is needed to improve electricity access so vaccines can be refrigerated.
Decades of experience with influenza offers insights into how we should handle new SARS-CoV-2 variants, and the threat they pose to vaccine effectiveness.
A woman who said she’s a medical worker who works directly with COVID-19 patients is stopped by police outside of the public Rebagliati Hospital in Lima, Peru, in February 2021. She complained that some people getting vaccinated don’t work directly with COVID-19 patients.
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A vaccination queue-jumping scandal in Peru has caused a massive uproar in the South American country. It could also be a wake-up call for all nations.
Giving smaller vaccine doses in multiple shots is often more effective than a larger single dose.
New mRNA vaccines use genes from the coronavirus to produce immunity.
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So far, most vaccines in the US are mRNA vaccines. These represent a new technology and are likely to take over the vaccine world. But how do they work? What are their weaknesses? Five experts explain.
Indigenous people face enough health challenges and burdens that we do not need to excavate the past to embellish real concerns of the present.
The media reporting on Indigenous vaccine hesitancy is as sensational as it is incorrect. Indigenous people, for the most part, are not more vaccine hesitant than non-Indigenous Canadians.
The diphtheria vaccine ensures the disease is no longer the threat it once was.
Our study found that the bacteria which causes diphtheria is rapidly changing.
Israeli diners with a ‘green pass’ get to enjoy a meal with friends.
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The pandemic has exposed inequalities in society. There is concern that tying freedoms to vaccinations may further disadvantage vulnerable groups.
Waiting in line for a vaccine at the Balboa Sports Complex in Encino, California.
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No one likes a long line. But privileging the rich and powerful – as has often been the case – may undermine trust in the vaccine rollout.
There is a difference between people who deliberately seek out vaccines outside the system, and those who are offered them because they’re about to expire.
Dr. Cyprian Ngong, a staff member of National Hospital, Abuja, receives COVID-19 vaccine.
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Confusion reigns about Nigeria’s distribution plan for its first batch of COVID-19 vaccines.
A COVID-19 vaccine is administered at a clinic at Olympic Stadium in Montréal on March 1, 2021, marking the beginning of mass vaccination in the Province of Québec based on age.
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With four COVID-19 vaccines approved for use in Canada, it’s time to answer FAQs about efficacy, immunity, eradication and variants.
Gene-based vaccines had never been approved for humans before the coronavirus pandemic.
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The coronavirus pandemic has driven a lot of scientific progress in the past year. But just as some of the social changes are likely here to stay, so are some medical innovations.
The concern is about more than one shot vs. two.
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Religious opposition over a link to abortions performed decades ago and misunderstandings about effectiveness could lead to a nightmare of angry patients and wasted vaccine.