US measles outbreak: Disease at highest level in decades

Measles has made a comeback in the US as vaccination rates fall and the infection spreads through travel.

After US health authorities said measles was no longer a major threat, rates of infection fell nationwide.

But they’re now back up again, mirroring an increase in global rates.

The World Health Organization is reporting a 300-percent rise in cases worldwide this month as compared with the first three months of last year.

Al Jazeera’s Mike Hanna reports from Washington, DC.