The first written description of measles appeared in the 9th century, recorded by Persian physician Muhammad ibn Zakariya al-Razi.

This highly contagious viral infection originated from a mutation of a bovine disease called rinderpest. Through global vaccination efforts, rinderpest was eradicated in 2011.

While cattle are now safe, humans remain vulnerable to the measles virus.

With global travel, measles spread rapidly across continents, leaving illness and death in its wake.

GALLERY OF MEASLES STOCK IMAGES

Those infected typically develop a high fever, cold-like symptoms, and a rash. Most recover within a few weeks, but some develop pneumonia or encephalitis. Pregnant women face the risk of severe complications, including harm to their unborn child.

The worst U.S. outbreak occurred before the vaccine was developed, causing nearly 500 deaths and over half a million infections.

The measles vaccine, developed in 1963 and widely available by 1971, is 97% effective. Yet some still put children—and others—at risk by avoiding vaccination. Even a mild case can transmit the virus to infants, older adults, or those with weakened immune systems, leading to serious illness or death.

In rare cases, measles can lead to a fatal complication known as subacute sclerosing panencephalitis (SSPE).

Everyone has the choice to vaccinate, but it’s vital that decisions are based on accurate medical information.

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