Risk factors

Risk factors for measles include:

• Being unvaccinated. If you haven't received the vaccine for measles, you're much more likely to develop the disease.
• Traveling internationally. If you travel to developing countries, where measles is more common, you're at higher risk of catching the disease.
• Having a vitamin A deficiency. If you don't have enough vitamin A in your diet, you're more likely to have more-severe symptoms and complications.