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Articles on Infectious diseases

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Lassa fever is spread through rodent urine and faeces. mauritius images GmbH/Alamy Stock Photo

Lassa fever case in Paris: what you need to know

Lassa virus kills about 1% of those who catch it, but if caught early enough, antiviral drugs can prevent serious illness.
Genetic analysis of the bacteria causing surgical site infections revealed that many were already present on the patient’s skin. Ruben Bonilla Gonzalo/Moment via Getty Images

Infections after surgery are more likely due to bacteria already on your skin than from microbes in the hospital − new research

Most infection prevention guidelines center on the hospital environment rather than the patient. But the source of antibiotic-resistant microbes is often from the patient’s own body.
Aedes aegypti, found across much of the U.S., spread Zika, dengue, chikungunya and other viruses. Mailson Pignata/iStock via Getty Images

Female mosquitoes rely on one another to choose the best breeding sites − and with the arrival of spring, they’re already on the hunt

Female mosquitoes don’t want to lay their eggs alone, but they don’t want sites that are too crowded either. Understanding what guides their choice could inform new control strategies.
Understanding the flexibility of T cell memory can lead to improved vaccines and immunotherapies. Juan Gaertner/Science Photo Library via Getty Images

Immune cells can adapt to invading pathogens, deciding whether to fight now or prepare for the next battle

When faced with a threat, T cells have the decision-making flexibility to both clear out the pathogen now and ready themselves for a future encounter.
assiduousness, Shutterstock

Lumpy skin disease is a threat to Australia and could decimate our cattle industries – we need to know how it could enter and spread

A disfiguring disease of cattle and buffalo has arrived on our doorstep. We need to keep lumpy skin disease out of Australia, while preparing for the almost inevitable outbreak.
Syphilis is a sexually transmitted infection (STI) caused by the Treponema pallidum bacterium. (NIAID, cropped from original)

FAQ: Why are syphilis cases on the rise in Canada?

With the alarming rise in syphilis cases in recent years, it’s important to know what it is, how it’s spread and who is most at risk.
An increase in cases of diseases caused by group A Streptococcus has been seen in several countries including Canada. (National Institute of Allergy and Infectious Diseases (NIAID))

Strep A explainer: Why invasive cases are increasing, how it spreads and what symptoms to look for

An increase in serious illnesses caused by group A Streptococcus has recently made Strep A a growing concern in Canada and elsewhere. Here’s why and how it’s spreading, and what symptoms to look for.

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