Scientists create organoids with specialized blood vessels - National Institutes of Health (NIH) | (.gov)

A child is marked by a healthcare official after receiving the polio vaccination. A polio-free Africa is within reach, but only if we make it a priority. Ending the disease will not only protect our children, but it will also strengthen our health systems and safeguard us against future threats. The Ebola outbreak in Central Africa, with several cases of polio lurking in the shadows, remains an instructive lesson to keep in mind for World Polio Day, October 24, and after.

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As Canadians prepare for Halloween, the Canadian Ophthalmological Society (COS), the Canadian Association of Optometrists (CAO) and the Opticians Association of Canada (OAC) are reminding the public that cosmetic contact lenses can pose serious risks to eye health, even when worn for a single occasion. Cosmetic contact lenses, also called decorative, coloured or costume lenses, change the appearance of the eyes without correcting vision. Like corrective contact lenses, they sit directly on the eye and require professional guidance on fit, use and care. Improperly fitted or handled lenses can cause scratches to the cornea, allergic reactions and infections, with complications that may threaten vision.

For tens of millions of people, dental implants have provided a way to replace missing teeth with a full set of fixed, functional teeth rather than removable dentures. However, an estimated 10% to 20% of implant patients eventually develop peri-implantitis, a serious infection that damages the surrounding jawbone. Antibiotics frequently fail to control this condition, and scientists have struggled to understand why. Now, researchers believe they have uncovered the mechanism responsible.