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Articles on Vaccines

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Several thousand protestors opposed to the COVID-19 vaccine march through the streets of midtown Manhattan in New York on Sept. 18, 2021. Andrew Lichtenstein/Corbis News via Getty Images

Can healthy people who eat right and exercise skip the COVID-19 vaccine? A research scientist and fitness enthusiast explains why the answer is no

A growing body of research shows that nutrition, sleep, exercise and a host of other lifestyle choices can help optimize the immune system. But they are no substitute for life-saving vaccines.
Aerial view of the UK’s national synchrotron, Diamond Light Source Ltd (Diamond) on the Harwell Science and Innovation Campus in Oxfordshire, ©Diamond Light Source

Want to develop vaccines in Africa? Then invest in expertise and infrastructure

Making vaccines in South Africa by building on the foundation that’s been laid is possible. But only if substantial and sustained investment in human resources and infrastructure becomes a reality.
Public health officials have been waiting for good data before making any decisions about booster shots for people who received Johnson & Johnson’s Janssen COVID-19 vaccine. AP Photo/Mary Altaffer

New Johnson & Johnson data shows second shot boosts antibodies and protection against COVID-19 – but one dose is still strong against delta variant

Your body produces antibodies after an infection or vaccine, but these slowly decline over time. New Johnson & Johnson data sheds light on the duration of protection and the need for booster shots.
The FDA and CDC are recommending use of a third shot, or “booster dose” for certain groups of people in the U.S. Patrick T. Fallon/AFP via Getty Images

Tense decision-making as CDC joins FDA in recommending Pfizer booster shot for 65 & up, people at high risk and those with occupational exposure to COVID-19

Fault lines between the FDA and CDC regulatory processes have been on full display in the decisions over which groups of Americans should receive the Pfizer booster shot.
People wait in line to receive a vaccine shot against COVID-19 in Belgrade, Serbia, Aug. 17, 2021. Serbia and other countries have started administering booster doses. Meanwhile, more than half the world’s population has not had a first dose. AP Photo/Darko Vojinovic

Are COVID-19 boosters ethical, with half the world waiting for a first shot? A bioethicist weighs in

Scientists debate the medical benefits of booster shots. But there’s another aspect to consider: bioethics.
Sometimes facts and statistics aren’t enough to convince someone to get the COVID-19 vaccine. PeopleImages/E+ via Getty Images

A direct recommendation from a doctor may be the final push someone needs to get vaccinated

There are a variety of reasons why people do or don’t want to be vaccinated. Depending on how they frame their messaging around vaccination, doctors can often be the deciding factor.
A woman holds a rosary and a picture of the Virgin Mary during a 2019 hearing in Albany, N.Y., challenging the constitutionality of the state’s repeal of the religious exemption to vaccination. AP Photo/Hans Pennink

What’s the law on vaccine exemptions? A religious liberty expert explains

Plenty of groups are offering religious exemptions to COVID-19 vaccine mandates, but their legal basis isn’t as rock-solid as that might suggest.
September 11, 2021 marks the 18 month anniversary of the WHO declaring the COVID-19 outbreak a pandemic. summerphotos/Stock via Getty Images Plus

18 months of the COVID-19 pandemic – a retrospective in 7 charts

A lot has happened since the WHO declared the coronavirus outbreak a pandemic. A portrait in data highlights trends in everything from case counts, to research publications, to variant spread.
The huge number of active coronavirus infections offers plenty of opportunity for mutations to occur and new variants to arise. Eoneren/E+ via Getty Images

Massive numbers of new COVID–19 infections, not vaccines, are the main driver of new coronavirus variants

When the coronavirus copies itself, there is a chance its RNA will mutate. But new variants must jump from one host to another, and the more infections there are, the better chance this will happen.
SARS-CoV-2 variants have also played an integral part in driving the course of the pandemic. Shutterstock

COVID-19: It’s time to look at the finer details of South Africa’s pandemic picture

Communities with high vaccine coverage rates are likely to see lower case numbers, hospitalisations and deaths related to COVID-19 compared to those with poor vaccine coverage.
mRNA technologies for vaccine production is gaining more prominence Lulama Zenzile/Die Burger/Gallo Images via Getty Images

Messenger RNA: how it works in nature and in making vaccines

Thanks to the collaborative efforts of governments, funding agencies, academia, biotech and pharmaceutical companies, large-scale manufacturing of mRNA drug products is becoming a reality.
By better communicating how vaccines boost the immune system’s long term “memory”, manufacturers could address vaccine hesitancy. i_am_zews/Shutterstock

COVID-19 vaccines produce T-cell immunity that lasts and works against virus variants

Cell-mediated immunity is particularly effective at eradicating viruses, and more durable. This is important in the fight against COVID-19.

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