Mexico is experiencing a measles outbreak Between 1 January and 2 April 2020 1 364 probable1cases of measles were reported of which 124 were laboratory confirmed 991 were discarded and 328 remain under investigation The age of the confirmed measles cases ranged from three months to 68 years median 20 years and 59 were male Analysis conducted by the National Reference Laboratory InDRE identified the genotype D8 similar to other countries in the Region linage MVs GirSomnath IND 42 16 for 17 of the confirmed cases Of the 124 confirmed cases 105 were in Mexico City 18 in Mexico State and one in Campeche State the following is a summary of the epidemiological situation in each