In Europe, there were more than 21,000 cases of measles and 35 deaths last year, a fourfold increase in cases compared to the previous year.
The World Health Organization reports the number of people who contracted measles in Europe in 2017 was four times higher than the year before.
Brazil has launched a campaign to vaccinate more than 23 million people in response to a yellow fever outbreak that has killed more than 200 people, according to the country's Health Ministry.
A Pakistani mother and daughter were killed in the country's southwestern city of Quetta. There was no immediate claim of responsibility for the attack.
The country halts use of Dengvaxia vaccine after French pharma Sanofi says its drug might, in some cases increase risk of severe dengue in recipients not previously infected by the virus.
The country's health minister says the people who vaccinated the children had used unsterilised syringes and were neither qualified nor trained for the immunisation campaign.
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