Measles cases by year tell one of the clearest stories in American public health. A disease that reached nearly every child fell to a few dozen cases a year, then climbed back to numbers not seen since the early 1990s. Read in order, the counts show what pushed measles down, what let it return, and what your family can do about it.
You may be a parent checking a toddler's shot record. You may be a grandparent who had measles as a child, or someone reading about an outbreak two counties over. The history is short enough to learn in one sitting, and the household steps fit inside a weekend.
Start by finding the vaccination record for every person in your home. Pull out the paper cards, log in to your state immunization registry, or call your doctor's office. With those records in hand, every figure below turns into a clear question with a clear answer: who here is protected, and who needs a next step.
Before the Vaccine: A Rash Nearly Every Child Got
The pre-vaccine years give you the baseline that every later count is measured against. Measles cases by year start here, and this baseline also explains why measles spreads so fast when protection slips. After the baseline comes the steep fall that followed the vaccine.
The CDC estimates that in the decade before 1963, 3 to 4 million people in the United States caught measles each year. Of those, about 48,000 were hospitalized and 400 to 500 died. About 1,000 more developed encephalitis, a swelling of the brain that could leave lasting damage. Only about 500,000 cases a year were reported to health departments, because most families treated measles as a normal part of childhood. Nearly every child had measles by age 15.
Contagion That Fills a Room
Measles is one of the most contagious diseases known. The CDC states that up to 9 out of 10 unprotected people close to an infected person will catch it. The virus travels through the air when someone coughs, sneezes, or breathes. It stays in the air of a room for up to two hours after the sick person leaves. A person is contagious from about four days before the rash appears through four days after. Researchers estimate that one case can infect 12 to 18 unprotected people, far more than seasonal flu.
The 2011 film Contagion puts this math on screen, with a public health investigator explaining how many people each case infects as a fictional virus spreads outward from one returning traveler. Measles spreads even faster than the virus in the film, which is why its yearly counts track vaccine coverage so closely.
Complications Behind the Rash
Measles usually starts with high fever, cough, runny nose, and red, watery eyes. The rash follows a few days later, spreading from the hairline down the body. Most children recovered, and that is the part families remembered. The CDC lists ear infections as a common complication and pneumonia as the most common cause of measles death in young children. For parents in the 1950s, a case meant a week or more of nursing a feverish child at home, with real worry if breathing grew harder.
Measles Cases by Year: The Long Decline
The vaccine years show you exactly what made measles fall, and that same tool protects your family today. Read the milestone counts here, then see how one resurgence changed the schedule every child now follows. After that, the story turns to the years when measles came back.
1963: The Shot Arrives
The first measles vaccines were licensed in the United States in 1963. An improved live vaccine developed by Maurice Hilleman followed in 1968, and its strain is still used today. In 1971, it was combined with the mumps and rubella vaccines into the MMR shot. Within five years of licensure, reported cases fell by more than 90 percent.
Adults vaccinated between 1963 and 1967 have one extra item to check. Some people in those years received an early killed vaccine that did not hold up well. The CDC recommends revaccination for anyone who got that type or does not know which type they received.
1989 to 1991: The Gap Shows
By 1983, reported cases had fallen to 1,497. Then measles came back. From 1989 to 1991, the United States recorded more than 55,000 cases and more than 120 deaths, according to the CDC. Many cases struck unvaccinated preschool children in cities. Others appeared in school-age children who had received one dose. A single dose protects about 93 percent of people, so a small share of vaccinated children stayed open to infection. In crowded schools, that small share kept chains of spread going.
In 1989, the CDC's vaccine advisory committee and the American Academy of Pediatrics recommended a second MMR dose. Two doses protect about 97 percent of people. Paired with a push to vaccinate preschoolers on time, the second dose drove cases back down.
2000: Elimination Declared
In 2000, the United States declared measles eliminated. Elimination means no single chain of spread has lasted 12 months or more. Imported cases and small outbreaks still happen under that status, and each one ends before a full year passes.
Milestone Counts
These measles cases by year, as reported nationally by the CDC, make the rise and fall plain.
1962: 481,530 cases. The last full year before the vaccine, with most infections never reported.
1963: 385,156 cases. The year the first vaccines were licensed.
1968: 22,231 cases. Five years of vaccination cut reported cases by more than 90 percent.
1983: 1,497 cases. A record low at the time.
1990: 27,786 cases. The peak of the 1989 to 1991 resurgence.
1993: 312 cases. The second dose and on-time preschool shots took hold.
2000: 86 cases. The year measles was declared eliminated.
2004: 37 cases. The lowest count on record.
The Resurgence: Measles Cases by Year Since 2000
The resurgence years show you which conditions let measles return, so you can check whether those conditions exist where you live. Each record year has a cause you can name. The drivers follow the counts, and then the steps that turn this history into a household plan.
2014: 667 Cases
In 2014, the CDC reported 667 cases, the most since elimination was declared. More than half came from one outbreak of 383 cases in an Amish community in Ohio. It began after unvaccinated travelers returned from the Philippines.
2019: 1,274 Cases
In 2019, the CDC reported 1,274 cases in 31 states, the highest count since 1992. Most were tied to large outbreaks in close-knit communities in New York City and Rockland County. One chain of spread ran for nearly a full year. The United States came within weeks of losing its elimination status.
2025: A New High
The 2025 measles outbreak began in January in Gaines County, Texas, and spread into New Mexico, Oklahoma, and Kansas. Texas alone reported 762 cases. Two unvaccinated school-age children in Texas and one unvaccinated adult in New Mexico died. Those were the first U.S. measles deaths since 2015. The national count passed the 2019 total by July 2025 and kept climbing to the most since 1992.
2026: Higher Still
The 2026 measles outbreak pushed counts higher again. As of October 2026, the Pennsylvania measles outbreak had passed 1,300 cases, reaching 1,317 cases in 43 counties with 251 people hospitalized and five deaths. That one state's total is larger than the entire national count for 2019. For the current national figure, check the CDC's measles page, which updates weekly.
Gaps in Coverage
Behind the jump in measles cases by year sit three drivers, and the first is falling coverage. Measles needs about 95 percent of a community to be immune before chains of spread stop on their own. CDC data show MMR coverage among kindergartners fell from 95.2 percent in the 2019 to 2020 school year to 92.5 percent in the 2024 to 2025 school year. Exemptions reached a record 3.6 percent. National averages hide local gaps, and some schools and counties sit well below 90 percent.
Imported Cases
Measles remains common in many parts of the world. Most U.S. outbreaks start when an unvaccinated traveler, often a U.S. resident returning home, carries the virus in. An airport gate or a clinic waiting room then becomes the next link.
Close-Knit Undervaccinated Groups
Outbreaks grow largest where many unvaccinated people share schools, worship, gatherings, and homes. Large families and tight social circles move the virus quickly from house to house. That same closeness also carries information fast, and health departments work through trusted community members to bring vaccine clinics and exposure alerts to families.
What the Pattern Teaches a Family
The pattern in measles cases by year hands you a short, reliable plan: confirm immunity, protect the youngest, and stay ready to stay home. Each piece rests on a lesson from the counts above. The three steps at the end put it in order.
Status That Can Slip
Elimination is a status, and a country can lose it. Canada lost its measles elimination status in November 2025 after one outbreak ran longer than 12 months. The 1989 to 1991 resurgence shows the same lesson on a U.S. timeline: when coverage drops, measles returns within a few years. Verify your family's immunity the way you rotate a food supply, on a schedule and with a written record.
Records That Go Missing
If you were vaccinated as a child, you are very likely protected. The catch is proof, because paper cards get lost in moves and adult records are often scattered. The CDC treats adults born before 1957 as presumed immune, since nearly everyone caught measles back then. If you were born in 1957 or later and have one documented dose, ask your doctor about a second dose, especially before travel or college. If you have no records at all, a blood test called a titer can show immunity, or you can get the MMR again. An extra dose causes no harm for someone already immune, and either path ends the guessing.
Babies Too Young for the Shot
The first MMR dose is routinely given at 12 to 15 months, and the second at 4 to 6 years. Infants 6 to 11 months old who travel internationally should get an early dose. Health departments in outbreak areas sometimes recommend early doses at home too. If you have an infant, vaccinate everyone around the baby, from parents to older siblings to the grandparent who babysits. Learn the infant measles symptoms so you can call the clinic ahead instead of waiting in a crowded room. A larger household means more people to check, and it also means more protected people forming a ring around the baby.
Room to Stay Home
An unvaccinated person exposed to measles may be asked to stay home for up to 21 days. Preppers already keep a stocked pantry and a medicine shelf, and that preparedness turns three weeks at home into a routine. If you live in a small apartment, set one bedroom aside for a sick person; a small room is also easier to clean and air out. That same stock of food, fever reducers, and fluids is the core of how you prepare for an infectious disease outbreak of any kind.
The 2017 film It Comes at Night follows a family isolating in a house during a contagious outbreak, keeping strict rules about who comes in and who stays apart. It shows how much of a home quarantine rests on supplies already on hand and clear house rules, which is exactly what a stocked pantry and a set-aside sick room give you.
Three Steps for This Weekend
1. Gather the records. Collect MMR proof for everyone in your home and store copies with your other family documents. You get an instant answer when a school, employer, or health department asks.
2. Close the gaps. Book appointments for anyone with missing or single doses. Ask about an early dose for infants if you live near an outbreak or plan to travel. Two doses give you about 97 percent protection.
3. Set up your watch. Bookmark your state health department's measles page and the CDC's weekly count. When an outbreak reaches your county, you will know the same day and can act with records already in hand.
