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Articles on Vaccines

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Many viruses interact with the olfactory system, and can damage other areas of the brain through it. Mohammed Haneefa Nizamudeen/iStock via Getty Images Plus

Vaccination to prevent dementia? New research suggests one way viral infections can accelerate neurodegeneration

Inflammation and damage to the olfactory system from shingles, COVID-19 and herpes infections may contribute to Alzheimer’s disease.
Cells secrete exosomes carrying molecules that play a critical role in both health and disease. Meletios Verras/iStock via Getty Images Plus

Chickenpox and shingles virus lying dormant in your neurons can reactivate and increase your risk of stroke – new research identified a potential culprit

People with an active case of shingles have up to an 80% higher risk of stroke than those without. The increased risk is highest for patients under 40.
The Chinese government has loosened restrictions designed to limit the spread of COVID-19. Kevin Frayer/Stringer via Getty Images

China’s loosened COVID-19 policies – following years of aggressive lockdowns and quarantines – have left the country vulnerable

Strict lockdowns, quarantines and testing have prevented many people in China from catching COVID-19. With concerns over Chinese vaccine efficacy and uptake, China may be facing a looming COVID-19 surge.
Throughout the pandemic, much discussion about COVID-19 transmission focused on individual-level decisions, making it easy to blame the unvaccinated. (Pixabay)

Beyond vaccine hesitancy: Understanding systemic barriers to getting vaccinated

Systemic social issues affect vaccine access and acceptability. Yet, the term ‘vaccine hesitancy’ overlooks this, reducing the multiple factors that affect vaccine uptake to individual-level choices.
Imaging the proteins on the surface of HCV has been challenging because of the virus’s shape-shifting nature. Juan Gaertner/Science Photo Library via Getty Images

Scientists uncovered the structure of the key protein for a future hepatitis C vaccine – here’s how they did it

Using a Nobel Prize-winning technique called cryo-EM, researchers were able to identify potential areas on the hepatitis C virus that a vaccine could target.
Pediatric emergency rooms in some states are at or over capacity due to the surging number of respiratory infections. GOLFX/iStock via Getty Images Plus

COVID-19, RSV and the flu are straining health care systems – two epidemiologists explain what the ‘triple threat’ means for children

Respiratory viruses are hitting young children and infants particularly hard this fall and winter season, and experts don’t yet know exactly why.
A 10-year-old Toronto boy receives his COVID-19 vaccine shot from a Toronto Public Health nurse at a children’s vaccine clinic at Scotiabank Arena in December 2021. THE CANADIAN PRESS/Chris Young

Adding COVID-19 to ‘designated diseases’ could boost vaccine uptake among children

Adding COVID-19 to a list of ‘designated diseases’ will not make vaccination mandatory for school entry. But it may help increase COVID-19 vaccine uptake among children.
Louis Pasteur was a pioneer in chemistry, microbiology, immunology and vaccinology. pictore/DigitalVision Vectors via Getty Images

Louis Pasteur’s scientific discoveries in the 19th century revolutionized medicine and continue to save the lives of millions today

On World Rabies Day – which is also the anniversary of French microbiologist Louis Pasteur’s death – a virologist reflects on the achievements of this visionary scientist.
In 1956, during the height of the polio epidemic in the U.S., health officials in Chicago offer polio shots at a public school. Bettmann via Getty Images

Polio vaccination rates in some areas of the US hover dangerously close to the threshold required for herd immunity – here’s why that matters

With poliovirus circulating in New York, health authorities worry that pockets of the county with low polio vaccination rates could give the virus a foothold.

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