IMPORTANCE Case-based surveillance of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection likely underestimates the true prevalence of infections. Large-scale seroprevalence surveys can better estimate infection across many geographic regions. OBJECTIVE To estimate the prevalence of persons with SARS-CoV-2 antibodies using residual sera from commercial laboratories across the US and assess changes over time. DESIGN, SETTING, AND PARTICIPANTS This repeated, cross-sectional study conducted across all 50 states, the District of Columbia, and Puerto Rico used a convenience sample of residual serum specimens provided by persons of all ages that were originally submitted for routine screening or clinical management from 2 private clinical commercial laboratories. Samples were obtained during 4 collection periods

This national-level study found that most of the 15-25 year olds never received an STI test. In addition, confidentiality concerns may deter youth from seeking STI testing. Appropriate strategies to minimize these concerns may be useful. Potential strategies to ameliorate these issues may include engaging clinicians who frequently serve adolescents and young adults to address confidentiality issues with youth patients.

Background Although preventable through timely screening and treatment, congenital syphilis (CS) rates are increasing in the United States, occurring in 5% of counties in 2015. Although individual-level factors are important predictors of CS, given the geographic focus of CS, it is also imperative to understand what county-level factors are associated with CS. Methods This is a secondary analysis of reported county CS cases to the National Notifiable Diseases Surveillance System during the periods 2014–2015 and 2016–2017. We developed a predictive model to identify county-level factors associated with CS and use these to predict counties at elevated risk for future CS. Results Our final model identified 973 (31.0% of all US counties) counties at elevated risk for CS (sensitivity, 88.1%; specificity, 74.0%). County factors that were predictive of CS included metropolitan area, income inequality, primary and secondary syphilis rates among women and men who have sex with men, and population proportions of those who are non-Hispanic black, Hispanic, living in urban areas, and uninsured. The predictive model using 2014–2015 CS outcome data was predictive of 2016–2017 CS cases (area under the curve value, 89.2%) Conclusions Given the dire consequences of CS, increasing prevention efforts remains important. The ability to predict counties at most elevated risk for CS based on county factors may help target CS resources where they are needed most.

Poorer health suffered by lesbian, gay, and bisexual (LGB) populations may be associated with public policies. We collected the laws that in 2013 prohibited discrimination based on sexual orientation from 50 United States (US) states, the District of Columbia (Washington, DC or DC), and the 30 most populous US metropolitan areas. To facilitate future research, we coded certain aspects of these laws to create a dataset. We generated descriptive statistics by jurisdiction type and tested for regional differences in state law using Chi-square tests. Sixteen (31.4 per cent) states prohibited discrimination by all employers based on sexual orientation, 25 states (49.0 per cent) in public employment, 18 states (35.3 per cent) in government contracting, and 21 states (41.2 per cent) in private employment. Twenty-one states prohibited discrimination (41.2 per cent) in housing practices (selling and renting), and 17 (33.3 per cent) in public accommodations. Local (county/city) laws prohibiting discrimination were less common. State laws differed significantly by US census region - West, Midwest, Northeast, and South. Future analyses of these data could examine the impact of these laws on various outcomes, including health among LGB populations.

Background: Surveillance reports have shown that reported sexually transmitted diseases (STDs) are increasing. The provision of partner services is an effective tool for preventing and reducing the spread of STDs. We examined partner services provided by health departments and assessed for associations with jurisdiction size, STD morbidity, and region. Methods:We used stratified random sampling to select 668 local health departments (LHDs) and selected all (n = 50) state health departments (SHDs). Rao-Scott χ 2 analyses were performed to examine partner services by health department type (SHD vs. LHD), region, jurisdiction size (LHD only), and STD morbidity (LHD only).Results: Approximately 49.0% of LHDs and 88.0% of SHDs responded to the survey. Most LHDs (81.6%) and SHDs (79.5%) provided partner services for some STDs (P = 0.63). Compared with SHDs, a higher proportion of LHDs provided expedited partner therapy for chlamydia (66.8% vs. 34.2%, P < 0.01) and gonorrhea (39.3% vs. 22.9%, P = 0.09). Partner service staff performed other activities such as conducting enhanced surveillance activities (23.0% of LHDs, 34.3% of SHDs; P = 0.20) and participating in outbreak response and emergency preparedness (84.8% of LHDs, 80.0% of SHDs; P = 0.51). Associations were found when partner services were stratified by health department type, jurisdiction size, STD morbidity, and region. All LHDs in high-morbidity areas provided partner services and 45.4% performed serologic testing of syphilis contacts in the field.Conclusions: A majority of STD programs in LHDs and SHDs provide a variety of partner services and partner service-related activities. It is imperative to continue monitoring the provision of partner services to understand how critical public health needs are being met.