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A schoolteacher in the midst of receiving a full pe'a, the traditional Samoan tattoo generally worn by males. Christopher Lynn

Untangling tattoos’ influence on immune response

An anthropologist works in American Samoa, taking advantage of the island’s longstanding tattoo culture to tease out the effects tattoos have on the body’s immune function.
You might feel terrible. But your runny nose, sore throat and aches are signs your body is fighting the flu virus. And that’s a good thing. from www.shutterstock.com

Sick with the flu? Here’s why you feel so bad

How can a tiny flu virus make you feel so bad, all over? Here’s what’s behind your high temperature, muscle aches and other flu symptoms.
If a Canadian health-care professional believes that an adolescent is a mature minor and has not been vaccinated, they are legally and ethically obliged to provide them with information about vaccination. (Shutterstock)

Vaccination: In Canada, many teenagers don’t need parental consent

In Canada, the age of consent for health-care decisions is assessed on a case-by-case basis. It can be age 14, or sometimes even younger.
Vaccine work because they help create herd immunity. JPC-PROD/Shutterstock.com

3 ethical reasons for vaccinating your children

Billboards spreading misinformation on the risks of vaccination have popped up around American cities. A bioethicist explains why decisions not to vaccinate children are indefensible.
U.S. President Donald Trump during a campaign rally in Topeka, Kan., Oct. 6, 2018. REUTERS/Yuri Gripas

From Caesar to Trump: Immunity is a hard thing to give up

US law says the president can’t be indicted, an echo of ancient Roman law. The efforts Roman leader Julius Caesar made to maintain his immunity is a cautionary tale for America’s political system.
The flu shot is free for at-risk groups, and available to others for around $10-$25. Shutterstock

Explainer: what’s new about the 2018 flu vaccines, and who should get one?

While not perfect, the seasonal flu vaccine is the best way to protect against influenza. There are a few changes to the flu vaccine and what is available this year. Here’s what you need to know.

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