“There is increasing evidence through comparisons of what’s happening in different countries and in different states, in terms of mask usage and mandates, that masks help slow transmission of COVID-19. Of course, it would be ideal if everyone had access to high-quality masks, but masks do not have to be 100% effective to reduce one’s exposure to virus. At this point, any reduction helps. I think it is becoming clear that the benefits to wearing face coverings outweigh any downsides.”
— Linsey Marr, PhD, Professor of Civil and Environmental Engineering, Virginia Polytechnic Institute and State University
Quote originally posted here.
On 12th July 1957, the US government became the first government to publicly link smoking to lung cancer. The Surgeon General, Dr. Leroy Burney, who was an epidemiologist (someone who looks at patterns and causes of various health and disease conditions), issued a report which stated:
‘It is clear that there is an increasing and consistent body of evidence that excessive cigarette smoking is one of the causative factors in lung cancer.’
This was an important statement because of how widespread smoking was at that time, and how much power lobbyists in the tobacco industry held. Unsurprisingly, The Tobacco Industry Research Committee rejected the study and complained about the methodology used. Continue reading “On This Day – 12th July”