Aretha Franklin speculated live on MSNBC on Thursday, April 21, that Prince could have died from the Zika virus. The songstress made the comment while talking about the late icon’s unexpected death with Brian Williams.

The Zika virus, which is spread by Aedes aegypti mosquitoes, triggered a global health emergency this year. According to the Centers for Disease Control and Prevention, “the most common symptoms of Zika are fever, rash, joint pain and conjunctivitis (red eyes).” The CDC notes that people “very rarely die of Zika” or get sick enough to go to the hospital.