People born between 1945 and 1965 are considered “baby boomers,” a generation group that is also five times more likely to have hepatitis C virus (HCV) than other people. It’s estimated that between three and five million people have chronic hepatitis C in the U.

The Zika virus, which originated in Uganda in the Zika forest, is rare among adults. However, it’s incredibly dangerous for a developing baby. “If you are a woman of child-bearing years or if you are pregnant, you must take every precaution to not get infected, especially during the first trimester,” said Mirfakhraee.