In 2013 and the first quarter of 2014, weekday evening cable news shows on CNN, Fox News and MSNBC underreported major stories on HIV/AIDS prevention, treatment and research, according to an analysis by Media Matters.  

In 2013, CNN had 11 mentions, with MSNBC and Fox News each having four mentions. In the first quarter of 2014, CNN and MSNBC each had one mention, with Fox News having no mentions.  

Shows included in the analysis: The Situation Room, Erin Burnett OutFront, Anderson Cooper 360, Piers Morgan Tonight, CNN Tonight, The Five, Special Report with Bret Baier, On The Record with Greta Van Susteren, The O'Reilly Factor, The Kelly File, Hannity, The Ed Show, Politics Nation, Hardball with Chris Matthews, All In with Chris Hayes, The Rachel Maddow Show and The Last Word with Lawrence O'Donnell.  

News transcripts between January 1, 2013, and March 31, 2014, were searched on Nexis. Segments on HIV/AIDS prevention, treatment, research and history were included. Crime stories involving HIV/AIDS were excluded, as well as passing mentions and reruns.   

To read the analysis, click here.