The World Health Organization (WHO) has named the top ten health challenges on Earth.
Among them, air pollution and climate change and the anti vaxxer movement in the U-S and around the world.
Right now, there's a measles outbreak in a county in Washington state believed due to more people seeking exemptions for their children to not be vaccinated.
Data from the Centers for Disease Control and Prevention shows the percentage of people who have received no vaccinations has quadrupled since 2001.
Dr. Sayone Thihalolipavan is the San Diego County Deputy Public Health Officer. In our interview below, he explains what is happening in the country and in California since a new law passed eliminating the personal belief exemption.