There were 285 new cases of measles in the U.S. in 2024. Measles, also known as rubeola, is an infectious disease that is highly contagious and affects mostly children. Common symptoms of measles include fever, runny nose, sore throat, cough, and a rash. Although death rates from measles have decreased around the world, it is still responsible for around 81,000 deaths worldwide per year. Measles vaccination The main reason for the decrease in measles cases and deaths is due to high vaccination rates. The widely used MMR vaccine protects against measles, mumps, and rubella and is safe and effective. In 2023, around 91 percent of adolescents in the U.S. aged 13 to 17 years had received an MMR vaccination. However, in recent years there has been a rise in measles cases in many parts of the world due to vaccine hesitancy. Vaccine hesitancy Vaccine hesitancy refers to a refusal or reluctance to have children vaccinated, despite the overwhelming evidence that vaccines are safe and effective. This hesitancy comes from a misunderstanding of the ingredients in vaccines and how they work, a mistrust of doctors and pharmaceutical companies, and belief in the unfounded associations of vaccines with other diseases and disorders.

In 1919, there were almost 13 deaths from measles per 100,000 population in the United States. However, this rate had dropped to zero by the year 2021. In early 2025, an outbreak of measles in Texas resulted in the death of a child. This was the first measles death in the United States since 2015. Measles is a highly contagious disease, that is especially dangerous for children. However, vaccines have significantly decreased the rate of cases and deaths in the United States.

In 2023, there were 11 reported cases of measles in Canada, compared to over two thousand cases in 1995. This statistic shows the number of reported cases of measles in Canada from 1930 to 2023.

Project Tycho data include counts of infectious disease cases or deaths per time interval. A count is equivalent to a data point. Project Tycho level 1 data include data counts that have been standardized for a specific, published, analysis. Standardization of level 1 data included representing various types of data counts into a common format and excluding data counts that are not required for the intended analysis. In addition, external data such as population data may have been integrated with disease data to derive rates or for other applications. Version 1.0.0 of level 1 data includes counts at the state level for smallpox, polio, measles, mumps, rubella, hepatitis A, and whooping cough and at the city level for diphtheria. The time period of data varies per disease somewhere between 1916 and 2011. This version includes cases as well as incidence rates per 100,000 population based on historical population estimates. These data have been used by investigators at the University of Pittsburgh to estimate the impact of vaccination programs in the United States, published in the New England Journal of Medicine: http://www.nejm.org/doi/full/10.1056/NEJMms1215400. See this paper for additional methods and detail about the origin of level 1 version 1.0.0 data. Level 1 version 1.0.0 data is represented in a CSV file with 7 columns:

epi_week: a six digit number that represents the year and epidemiological week for which disease cases or deaths were reported (yyyyww) state: the two digit postal code state abbreviation that represents the state for which a count has been reported loc: the name of a state or city for which a count has been reported, capitalized loc_type: the type of location (STATE or CITY) for which a count has been reported disease: the disease for which a count has been reported: HEPATITIS A, MEASLES, MUMPS, PERTUSSIS, POLIO, RUBELLA, SMALLPOX, or DIPHTHERIA cases: the number of cases reported for the specified disease, epidemiological week, and location incidence_per_100000: the number of cases per 100,000 people, computed using historical population counts for cities and states as reported by the US Census Bureau

Measles, an acute viral disease, continues to be an important cause of childhood mortality worldwide. Infection with the measles virus is thought to be associated with a transient but profound period of immune suppression. Recently, it has been claimed that measles-induced immune manipulation lasts for about 30 months and results in increased susceptibility to other co-circulating infectious diseases and more severe disease outcomes upon infection. We tested this hypothesis using model-based inference applied to parallel historical records of measles and whooping cough mortality and morbidity. Specifically, we used maximum likelihood to fit a mechanistic transmission model to incidence data from three different eras, spanning mortality records from 1904 to 1912 and 1922 to 1932 and morbidity records from 1946 to 1956. Our aim was to quantify the timing, severity and pathogenesis impacts of measles-induced immune modulation and their consequences for whooping cough epidemiology across a temporal gradient of measles transmission. We identified an increase in susceptibility to whooping cough following recent measles infection by approximately 85-, 10- and 36-fold for the three eras, respectively, although the duration of this effect was variable. Overall, while the immune impacts of measles may be strong and clearly evident at the individual level, their epidemiological signature in these data appears both modest and inconsistent.This article is part of the theme issue ‘Detection, forecasting and control of infectious disease epidemics: modelling outbreaks in humans, animals and plants Part 1’.

In the year 1930, the rate of reported cases of measles was 211.93 per 100,000 people. This rate had decreased to just 0.03 in the year 2023. This statistic shows the rate of reported cases of measles in Canada from 1930 to 2023, per 100,000 population.

In England and Wales, the number of measles cases peaked in 2012, when there were over ***** confirmed cases reported. In the first quarters of 2024, the number of confirmed cases of measles peaked again, reaching almost two thousand cases. This statistic displays the annual number of confirmed cases of measles in England and Wales between 2000 and 2024. Variation by region and age groups In 2023, there were *** confirmed cases of measles across England and Wales, with the West Midlands and London regions reporting the highest numbers. However, the first two quarters of 2024 saw a staggering increase to ***** cases, with London alone accounting for *** of these. The majority of cases in 2024 occurred in early age groups, with children below the age of nine accounting for almost ***** cases. Vaccination rates and parental concerns As of 2023/24, only around ** percent of children had completed their primary Measles, Mumps, and Rubella (MMR) immunization by their second birthday, the lowest figure since 2010/11. By their fifth birthday, nearly ** percent of children had received their MMR immunization. Meanwhile, a 2022 survey found that around one in five parents in England were at least somewhat concerned about the MMR vaccine, while around ** percent did not express any concern at all.

As of January 2022, *** cases of measles were confirmed in Nigeria. In the full year 2021, there were over 10,000 such cases in the country. According to the World Health Organization, in 2018, about ******* people died from measles worldwide. The majority of deaths are registered in countries with low-income and weak health facilities. Measles is considered one of the most contagious diseases.