ROME, July 14 — For families, the story of vaccines is not a dry list of dates and laboratories. It is the story of children who did not get sick, of parents who did not have to bury their babies, of communities that no longer live in fear of plagues that once swept through cities like a scythe. The vaccine timeline, spanning more than two centuries, begins with a country doctor in England.
In 1796, Edward Jenner developed the smallpox vaccine, the first of its kind. That single breakthrough would eventually lead to the global eradication of smallpox, one of humanity’s greatest achievements.
From Pasteur to Polio
The 19th century brought more pioneers. In 1885, Louis Pasteur’s rabies vaccine offered hope for a disease that was almost always fatal once symptoms appeared. Emil von Behring followed in 1913 with the diphtheria toxoid vaccine, work that earned him the Nobel Prize in 1901.
The tetanus vaccine arrived in 1924, and the pertussis vaccine in 1926. Yellow fever vaccine came in 1937, a crucial tool for tropical regions.
Then came the mid-century breakthroughs that changed the world. Jonas Salk’s inactivated polio vaccine (IPV) in 1955 was a moment of national celebration in the United States. Albert Sabin’s oral polio vaccine (OPV) followed in 1961, easier to administer and crucial for mass immunization campaigns.
Measles vaccine arrived in 1963, mumps in 1967, rubella in 1969. In 1971, these three were combined into the MMR vaccine, a single shot protecting against measles, mumps, and rubella.
For families, this meant one trip to the doctor instead of three, and a generation growing up without the fear of measles encephalitis or congenital rubella syndrome.
A Global Framework
The World Health Organization’s Expanded Programme on Immunization launched in 1974. It initially targeted six diseases: diphtheria, tetanus, pertussis, polio, measles, and tuberculosis. This program became the backbone of childhood immunization worldwide, reaching millions of children who previously had no access to vaccines.
The 1980s brought the hepatitis B vaccine in 1981, protecting against a virus that could cause lifelong liver damage and cancer. The varicella (chickenpox) vaccine arrived in 1995, and the HPV vaccine in 2006, the first vaccine designed to prevent a cancer—cervical cancer caused by human papillomavirus.
The mRNA Revolution
The most recent chapter came in 2020, when the first mRNA vaccines—Pfizer-BioNTech and Moderna—were authorized for COVID-19. This was not just another vaccine. It was a completely new platform, using messenger RNA to instruct cells to produce a harmless piece of the virus, triggering an immune response.
The speed of development was unprecedented, and the technology now holds promise for other diseases. For families, what this means is a future where vaccine development can be faster and more adaptable.
The science that began with a cowpox scratch in 1796 has become a sophisticated tool that can be reprogrammed to fight new threats. The vaccine timeline is still being written. Researchers continue to work on vaccines for HIV, malaria, tuberculosis, and other diseases that still claim millions of lives each year.
Behind every breakthrough are the people it protects—the child who will never know polio, the young woman who will not face cervical cancer, the elderly parent who survived COVID-19. Consult your doctor for medical advice.
