( CNN ) A measles outbreak that affected more than 130 Californians since December is over , the California Department of Public Health declared Friday . It has been 42 days since the last known case of B3 strain of measles , the equivalent of two successive incubation periods , said Dr. Karen Smith , director of the health department . The department said in its latest update that 131 people came down with the B3 strain , and five who had a different genotype than the outbreak strain . Of the 131 cases , the state was able to obtain the vaccination status for 81 patients . Of the 81 , 70 % were unvaccinated . `` Prompt investigation of cases , interviewing hundreds of contacts of infected people , vaccinating hundreds of at risk people , and increasing awareness among health care providers about measles , helped to control this outbreak , '' Smith said . The outbreak began with dozens of visitors to two Disney theme parks in the state . The health department said 42 of the cases occurred from December 17-20 . Two patients with rashes have been identified in April , but they have a different measles genotype . The Centers for Disease Control and Prevention said on its website that 19 different strains have been discovered since 1990 . Measles is a highly contagious respiratory disease . It causes fever , red and sore eyes , runny nose , cough and a rash . It can cause deadly health complications , including pneumonia and encephalitis . It is spread by contact with an infected person through coughing or sneezing . It can remain in the air and on surfaces for up to two hours . CNN 's Debra Goldschmidt contributed to this report .
Officials say 131 Californians were affected by one strain , five by other strains . 70 % of the people who could show health records were unvaccinated . Outbreak began in December among visitors to two Disney theme parks .