The highest numbers of affected people were reported in Romania (5,562), Italy (5,006) and Ukraine (4,767).
In its latest disease surveillance report for 2017, World Health Organization said declines in overall routine immunisation coverage and low coverage among some marginalised groups was the primary cause of the measles outbreak.
Of the cases recorded, 19,100 were recorded in eight of those 15 countries - Romania, Italy, Ukraine, Greece, Germany, Serbia, Tajikistan and France.
"Over 20,000 cases of measles, and 35 lives lost in 2017 alone, are a tragedy we simply can not accept", commented Dr Zsuzsanna Jakab, WHO regional director for Europe. Other countries with large outbreaks included Italy (5,006), Germany (927), France (520) and the United Kingdom (282).
The WHO is taking action to stop the current outbreaks and prevent new ones in several ways, including raising public awareness, immunising healthcare professionals and other adults at particular risk, addressing challenges in access, and improving supply planning and logistics.
Dr Jakab insisted that the elimination of both measles and rubella "is a priority goal that all European countries have firmly committed to".
Bengaluru pub brawl: Congress MLA Haris' son surrenders
Speaking on this incident, Congress MLA NA Haris said, "Whoever does wrong is wrong, be it the son of an MLA or anyone else". After the incident, Haris had claimed that his6 son was hiding somewhere without his knowledge.
However, the figures for Ireland show a reverse trend - with more cases in 2016 than in 2017. A Region-wide midterm EVAP progress report will be presented at the 68th session of the WHO Regional Committee for Europe in September 2018. The HSE is calling on those living in the Carew Park and Ballinacurra Weston areas of Limerick city to attend.
The measles rash is made up of red or brown blotches. The most serious complications include blindness, encephalitis - an infection that causes brain swelling and can lead to deafness or learning difficulties, severe diarrhea and severe respiratory infections such as pneumonia.
Malta was declared measles and rubella-free in the 2016 report (covering 2015) and has maintained that situation due to its strong immunisation programme.
Anyone can get measles if they haven't already had it, but it is more common in young children.
One dose is usually given to a child when they're 12-13 months old and a second dose is given before they start school, usually between three and five years old.