Samoa begins two-day shutdown as authorities battle deadly measles outbreak
More than 60 people have died from the disease which has infected at least 4,000 people as it spreads across the Pacific island.
More than 60 people have died from the disease which has infected at least 4,000 people as it spreads across the Pacific island.
Public Health England said a "significant increase" in cases had been reported in north-west London in recent weeks.
Is the anti-vax movement - the campaigners who believe that certain vaccines are not safe - to blame?