Infections with the type of monkeypox virus identified in this outbreak—the Clade IIb —are rarely fatal. Over 99% of people who get this form of the disease are likely to survive. However, people with weakened immune systems, children under 8 years of age, people with a history of eczema, and people who are pregnant or breastfeeding may be more likely to get seriously ill or die. The Clade I type of monkeypox virus has a fatality rate around 10%. Learn more about monkeypox.