Four new cases of the Zika virus were reported in Iowa Friday, though none of the infected people were pregnant, according to the Iowa Department of Public Health.
Affected Iowans were all older than 18, with three having recently traveled to the Caribbean and one having traveled to Central America.
Though no cases were reported during the month of July, nine cases of the virus were reported in Iowa between February 19 and June 24.
The virus, which can be transmitted through mosquito bites, can be most dangerous to pregnant women, causing birth defects in babies.
“The mosquitoes that are transmitting Zika virus in other areas of the world are not established in Iowa, so the risk to Iowans occurs when they travel to Zika-affected areas,” according to a news release from IDPH. “About 20 percent of people infected with Zika virus will become ill.”
The Iowa Department of Public Health recommended that those who travel should contact their doctor before traveling and follow the correct steps to prevent mosquito bites.