Articles on Infectious diseases

Displaying 141 - 160 of 674 articles

People often contract schistosomiasis through water contaminated with infected snails and feces. defun/iStock via Getty Images Plus

Tracking vampire worms with machine learning − using AI to diagnose schistosomiasis before the parasites causing it hatch in your blood

Schistosomiasis is a neglected tropical disease that triggers specific immune responses in the body. Identifying those hidden immune signatures can help improve detection and treatment.
Flu shots are recommended for most Canadians over six months old. (Shutterstock)

What you need to know about cold and flu season

With cold and flu season on the horizon, it’s time for a flu shot. It takes about two weeks after vaccination for immunity to take effect, which is why it’s recommended to get the jab in the fall.
Stigma and prejudice make it difficult for Black gay men to access PrEP. Willie B. Thomas/DigitalVision via Getty Images

Half of Black gay men will be diagnosed with HIV, despite highly effective preventive treatments − why?

PrEP can reduce the risk of sexually transmitted HIV infection by 99%. Discrimination and distrust are two barriers Black gay men face in accessing this lifesaving treatment.
Human, animal and environmental health are interconnected. Tambako the Jaguar/Moment via Getty Images

Humans infecting animals infecting humans − from COVID‑19 to bird flu, preventing pandemics requires protecting all species

Infectious diseases can spill over from animals to humans as well as spill back. Each cross-species transmission gives pathogens a chance to evolve and spread even further.
Noah Lyles, of the United States, lies on the track after competing in the men’s 200-metre final at the 2024 Summer Olympics on Aug. 8, 2024, in Saint-Denis, France. Lyles said he tested positive for COVID two days before he finished third in the 200-metre final. (AP Photo/Petr David Josek)

Why has COVID been so much worse this summer? The health belief model has the answer

Summer 2024 saw a big surge of COVID-19 cases. While COVID-19 is not the emergency it once was, it’s still a health threat, and we’d be wise to reduce our risk of getting it.
Although H5N1 typically infects wild birds, the virus has spilled over into domesticated animal populations, like dairy cows. Peter Cade/Stone via Getty Images

Avian flu has infected dairy cows in more than a dozen states – a microbiologist explains how the virus is spreading

The H5N1 virus has infected about 900 people since 2003, and more than half of them died. But so far there is no evidence of human-to-human transmission.

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