In this large, geographically diverse population, A(H1N1)pdm09 infection increased the risk for hospitalization during pregnancy. Late initiation of antiviral treatment was also associated with an increased risk for hospitalization.

HSV-2 seroprevalence is 3 times as high among HIV-infected adults as in the general U.S. population. Clinicians should be aware that increased risk for HSV-2 infection was distributed broadly among HIV-infected persons and not limited to those with high-risk sexual behaviors.

Discussion SMS follow-up of clinic defaulters improves subsequent re-attendance rates if a health promotional message is included. The addition of a health promotional message to current routine clinic reminder texts may reduce DNA rates and warrants further study.

Ease of online access to information about sexual health services varies by search topic and locale. Sexual health service providers must optimize their website placement so as to reach a greater proportion of the sexually active population who use web search engines.