Register | Login


Sixty years ago the United States took upon itself a challenge—eradicate malaria from the entire country, all 3.8 million square miles of it. The Centers for Disease Control and Prevention (CDC), the nation’s leading public health institute, was borne out of this plan, and for the next four years the CDC devoted itself to the cause spraying DDT in millions of homes across the country. In just three years, malaria cases dropped from 15,000 in 1947 to only 2,000 in 1950. By the end of the next year, malaria was considered eliminated.

DDT’s effectiveness in killing mosquitos wasn’t known until 1939 when the Swiss chemist Paul Hermann Müller discovered the chemical’s insecticidal action. Before that, controlling malaria was limited to proactive measures such as eliminating mosquito breeding grounds by drainage or poisoning with Paris green or pyrethrum.

flying-bats-2

Photo credit: Sangaroon/Shutterstock.com

Read more »
© Amusing Planet, 2018.


Loading...

Anushka Sharma On The Cover Of GQ India Magazine Dec 2016
Anushka Sharma On The Cover Of GQ India Magazine Dec 2016
Katrina Kaifs posts Beach Photographs from Maldives
Katrina Kaifs posts Beach Photographs from Maldives
Neha Sharma Glam Pics from Instagram
Neha Sharma Glam Pics from Instagram
Bolly Hotties Best Stills At Star Screen Awards 2016
Bolly Hotties Best Stills At Star Screen Awards 2016
Sunny Leone Launches Her Own MOBILE APP For Fans
Sunny Leone Launches Her Own MOBILE APP For Fans
Manish Malhotras 50th birthday bash All the pics
Manish Malhotras 50th birthday bash All the pics
Deepika Padukone poses for her Elle India magazine
Deepika Padukone poses for her Elle India magazine
Rakul Preet Singh reveals Interesting tid bits about Dhruva
Rakul Preet Singh reveals Interesting tid bits about Dhruva