Why do anti-vaxxers hold such unhealthy views?

The nurse struck off for anti-vaxxer rantings (Global report, 30 July) should be viewed as giving distorted lifestyle advice.

Why are there no concerted efforts by such people to counter other commonsense health recommendations that most of us accept from our doctors, such as exercising, losing weight, stopping smoking, reducing alcohol consumption and healthy eating?

Anthony Walter Coldstream, British Columbia, Canada