Younger people may experience long-term symptoms from coronavirus, according to the World Health Organization. While they are less likely to die, the virus still remains a threat. The WHO is urging young people not to “let down their guard.” (CNBC)

Juul has filed an application with the Food and Drug Administration to continue selling e-cigarettes in the U.S. The company says it addresses concerns about the teen vaping epidemic and stresses that its products help smokers transition away from cigarettes. (Bloomberg)

Human trials for Johnson & Johnson’s COVID-19 vaccine have begun. The single dose regimen proved effective in a study of monkeys where five out of six monkeys were protected against the infection. (Reuters)

A vaccine can be approved if it is 50% effective, said the Food and Drug Administration. The FDA commissioner Stephen Hahn added that the vaccine must be safe. (CNBC)

Pascale Communications’ Amy Houck and Vivvi Britton join MM&M’s Larry Dobrow in the latest episode of The MM&M Podcast. They discuss LinkedIn’s evolution as an A-list vehicle for health marketers. (MM&M)