Ancient mummy DNA provides scientific evidence that colonization brought smallpox to the Americas
Ancient mummy DNA recovered in Chile has yielded the firmest evidence yet that European colonization brought smallpox to the Americas.
Aug 2, 2026
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Infectious diseases news
Outbreak in DR Congo 'intensifying': WHO
The Ebola outbreak in the Democratic Republic of Congo is intensifying at an "exceptional" pace, the World Health Organization warned on Saturday, calling for a significant scaling up of the health response.
Aug 2, 2026
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CRISPR acts as commander-in-chief for backup defenses in bacteria
The main function of CRISPR-Cas systems is to defend bacteria against various threats, including viruses called bacteriophages. Researchers have continued to study all varieties of CRISPR-Cas systems (to date, two classes, ...
Aug 1, 2026
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Ivermectin taken at the start of pregnancy is not associated with an increased risk of adverse pregnancy outcomes
A study led by the Barcelona Institute for Global Health (ISGlobal), an institution supported by the "la Caixa" Foundation, found no increased risk of miscarriage, stillbirth or major congenital anomalies among women inadvertently ...
Aug 1, 2026
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Mighty mitochondria: Scientists uncover new role for fighting bacterial infections, including drug-resistant superbugs
Beyond the nucleus, no other organelle in eukaryotic cells captures the public's imagination quite like mitochondria: They are the engines of cellular energy production; they possess their own DNA, and they are passed from ...
Onsite rapid testing leads to decrease in ER visits among long-term care residents
A study led by Sunnybrook Health Sciences Center, Michael Garron Hospital, Humber River Health and the University of Toronto, in partnership with 20 long-term care (LTC) homes across Toronto, has found that onsite rapid testing ...
Jul 31, 2026
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Long COVID and immune 'soldier' cells: Q&A
Extreme fatigue, a racing pulse, shortness of breath, brain fog, aching joints—the symptoms of long COVID can vary widely, change unpredictably and be difficult to recognize as signs of the condition. Long COVID also remains ...
Jul 31, 2026
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This amino acid may help the body fight tumors and viral infections
The amino acid arginine helps keep the human body humming, most notably by synthesizing proteins that carry out a range of cellular processes. It's produced by our bodies and found in common high-protein foods. Low levels ...
Jul 30, 2026
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Phage and microbiota therapy reduced recurrent UTIs in two patients over two years
Recurrent urinary tract infections (rUTIs) are among the most common bacterial infections worldwide and primarily affect women. While antibiotics remain the standard treatment, frequent recurrences and rising antibiotic resistance ...
Jul 30, 2026
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International study shows once-weekly HIV pill performs as well as daily treatment
An international clinical trial led by researchers including Professor Chloe Orkin of Queen Mary University of London has shown that a once-weekly oral treatment for HIV is as effective as current leading daily therapies, ...
Jul 30, 2026
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