Officials from the Centers for Disease Control are sounding the alarm about a potential outbreak of the Zika virus in the United States, saying the threat is "scarier than we initially thought"
Officials from the Centers for Disease Control are sounding the alarm about a potential outbreak of the Zika virus in the United States, saying the threat is "scarier than we initially thought". CBS News chief medical correspondent Dr. Jon LaPook joins CBSN to discuss.
