Conclusions
Most SHDs have recently begun to use at least one social media application. The most popular social media is Twitter despite the fact that only 13% of internet users have a Twitter account. The reach of social media is limited as evidenced by the low number of followers, page likes, and subscribers. Additionally, SHDs appear to be using social media as another channel to distribute information rather than creating conversations and engaging with the audience. If public health agencies are to use social media effectively they must develop a strategic communication plan that incorporates best practices for expanding reach and fostering interactivity and engagement.