Determinates of Clostridioides difficile infection (CDI) testing practices among inpatients with diarrhea at selected acute-care hospitals in Rochester, New York, and Atlanta, Georgia, 2020-2021.

OBJECTIVE: We evaluated the impact of test-order frequency per diarrheal episodes on Clostridioides difficile infection (CDI) incidence estimates in a sample of hospitals at 2 CDC Emerging Infections Program (EIP) sites. DESIGN: Observational survey. SETTING: Inpatients at 5 acute-care hospitals in Rochester, New York, and Atlanta, Georgia, during two 10-workday periods in 2020 and 2021. OUTCOMES: We calculated diarrhea incidence, testing frequency, and CDI positivity (defined as any positive NAAT test) across strata. Predictors of CDI testing and positivity were assessed using modified Poisson regression. Population estimates of incidence using modified Emerging Infections Program methodology were compared between sites using the Mantel-Hanzel summary rate ratio. RESULTS: Surveillance of 38,365 patient days identified 860 diarrhea cases from 107 patient-care units mapped to 26 unique NHSN defined location types. Incidence of diarrhea was 22.4 of 1,000 patient days (medians, 25.8 for Rochester and 16.2 for Atlanta; P < .01). Similar proportions of diarrhea cases were hospital onset (66%) at both sites. Overall, 35% of patients with diarrhea were tested for CDI, but this differed by site: 21% in Rochester and 49% in Atlanta (P < .01). Regression models identified location type (ie, oncology or critical care) and laxative use predictive of CDI test ordering. Adjusting for these factors, CDI testing was 49% less likely in Rochester than Atlanta (adjusted rate ratio, 0.51; 95% confidence interval [CI], 0.40-0.63). Population estimates in Rochester had a 38% lower incidence of CDI than Atlanta (summary rate ratio, 0.62; 95% CI, 0.54-0.71). CONCLUSION: Accounting for patient-specific factors that influence CDI test ordering, differences in testing practices between sites remain and likely contribute to regional differences in surveillance estimates.

Prevalence and Correlates of COVID-19 Vaccine Information on Family Medicine Practices' Websites in the United States: Cross-sectional Website Content Analysis.

BACKGROUND: Primary care providers are regarded as trustworthy sources of information about COVID-19 vaccines. Although primary care practices often provide information about common medical and public health topics on their practice websites, little is known about whether they also provide information about COVID-19 vaccines on their practice websites. OBJECTIVE: This study aimed to investigate the prevalence and correlates of COVID-19 vaccine information on family medicine practices' website home pages in the United States. METHODS: We used the Centers for Medicare and Medicaid National Provider Identifier records to create a sampling frame of all family medicine providers based in the United States, from which we constructed a nationally representative random sample of 964 family medicine providers. Between September 20 and October 8, 2021, we manually examined the practice websites of these providers and extracted data on the availability of COVID-19 vaccine information, and we implemented a 10% cross-review quality control measure to resolve discordances in data abstraction. We estimated the prevalence of COVID-19 vaccine information on practice websites and website home pages and used Poisson regression with robust error variances to estimate crude and adjusted prevalence ratios for correlates of COVID-19 vaccine information, including practice size, practice region, university affiliation, and presence of information about seasonal influenza vaccines. Additionally, we performed sensitivity analyses to account for multiple comparisons. RESULTS: Of the 964 included family medicine practices, most (n=509, 52.8%) had ≥10 distinct locations, were unaffiliated with a university (n=838, 87.2%), and mentioned seasonal influenza vaccines on their websites (n=540, 56.1%). In total, 550 (57.1%) practices mentioned COVID-19 vaccines on their practices' website home page, specifically, and 726 (75.3%) mentioned COVID-19 vaccines anywhere on their practice website. As practice size increased, the likelihood of finding COVID-19 vaccine information on the home page increased (n=66, 27.7% among single-location practices, n=114, 52.5% among practices with 2-9 locations, n=66, 56.4% among practices with 10-19 locations, and n=304, 77.6% among practices with 20 or more locations, P<.001 for trend). Compared to clinics in the Northeast, those in the West and Midwest United States had a similar prevalence of COVID-19 vaccine information on website home pages, but clinics in the south had a lower prevalence (adjusted prevalence ratio 0.8, 95% CI 0.7 to 1.0; P=.02). Our results were largely unchanged in sensitivity analyses accounting for multiple comparisons. CONCLUSIONS: Given the ongoing COVID-19 pandemic, primary care practitioners who promote and provide vaccines should strongly consider utilizing their existing practice websites to share COVID-19 vaccine information. These existing platforms have the potential to serve as an extension of providers' influence on established and prospective patients who search the internet for information about COVID-19 vaccines.

Characteristics and Risk Factors for Mortality by Coronavirus Disease 2019 Pandemic Waves in Fulton County, Georgia: A Cohort Study March 2020-February 2021.

Background: We examined differences in mortality among coronavirus disease 2019 (COVID-19) cases in the first, second, and third waves of the COVID-19 pandemic. Methods: A retrospective cohort study of COVID-19 cases in Fulton County, Georgia, USA, reported to a public health surveillance from March 2020 through February 2021. We estimated case-fatality rates (CFR) by wave and used Cox proportional hazards random-effects models in each wave, with random effects at individual and long-term-care-facility level, to determine risk factors associated with rates of mortality. Results: Of 75 289 confirmed cases, 4490 (6%) were diagnosed in wave 1 (CFR 31 deaths/100 000 person days [pd]), 24 293 (32%) in wave 2 (CFR 7 deaths/100 000 pd), and 46 506 (62%) in wave 3 (CFR 9 deaths/100 000 pd). Compared with females, males were more likely to die in each wave: wave 1 (adjusted hazard ratio [aHR], 1.5; 95% confidence interval [CI], 1.2-1.8), wave 2 (aHR 1.5, 95% CI, 1.2-1.8), and wave 3 (aHR 1.7, 95% CI, 1.5-2.0). Compared with non-Hispanic whites, non-Hispanic blacks were more likely to die in each wave: wave 1 (aHR, 1.4; 95% CI, 1.1-1.8), wave 2 (aHR, 1.5; 95% CI, 1.2-1.9), and wave 3 (aHR, 1.7; 95% CI, 1.4-2.0). Cases with any disability, chronic renal disease, and cardiovascular disease were more likely to die in each wave compared with those without these comorbidities. Conclusions: Our study found gender and racial/ethnic disparities in COVID-19 mortality and certain comorbidities associated with COVID-19 mortality. These factors have persisted throughout the COVID-19 pandemic waves, despite improvements in diagnosis and treatment.

Homeless Shelters: HIV Testing During the Atlanta Tuberculosis Outbreak (2008-2018).

People experiencing homelessness are at increased risk of tuberculosis (TB) and HIV. We examined the impact of integrating HIV testing and mandatory TB screening on HIV test uptake (HTU) during a multishelter TB outbreak in Atlanta, Georgia (2008-2018). Overall HTU was low; however, the intervention led to a reversal of declining HTU trend (rate ratio = 1.11; 95% confidence interval = 1.04, 1.19). Concerted efforts to increase HIV testing access and uptake alongside robust TB control efforts may increase progress toward the goals of End TB and Ending the HIV Epidemic. (Am J Public Health. 2022;112(6):881-885. https://doi.org/10.2105/AJPH.2022.306801).

Association between having a regular healthcare provider and pre-exposure prophylaxis use among men who have sex with men: a cross-sectional survey.

Healthcare providers whom people see regularly (e.g., primary care providers [PCPs]) are likely to interact with individuals at risk of human immunodeficiency virus (HIV). However, most PCPs report never prescribing pre-exposure prophylaxis (PrEP), a medication that prevents HIV infection. This study examined the association between having a regular healthcare provider and PrEP use among men who have sex with men (MSM). We analyzed health survey data from Black (n = 151) and White (n = 113) MSM in Atlanta, GA using log binomial regressions. Among Black MSM, the proportion who used PrEP was nearly three times higher for those with a regular provider compared to those without one (aPR 2.58; 95% CI: 0.96, 6.93). Conversely, the proportion of White MSM who used PrEP was slightly lower among those with a regular provider (aPR 0.67; 95% CI: 0.36, 1.27). Findings suggest having a regular provider may be more strongly associated with PrEP among Black MSM.

Reductions in inpatient fluoroquinolone use and postdischarge Clostridioides difficile infection (CDI) from a systemwide antimicrobial stewardship intervention.

Objective: To determine the impact of an inpatient stewardship intervention targeting fluoroquinolone use on inpatient and postdischarge Clostridioides difficile infection (CDI). Design: We used an interrupted time series study design to evaluate the rate of hospital-onset CDI (HO-CDI), postdischarge CDI (PD-CDI) within 12 weeks, and inpatient fluoroquinolone use from 2 years prior to 1 year after a stewardship intervention. Setting: An academic healthcare system with 4 hospitals. Patients: All inpatients hospitalized between January 2017 and September 2020, excluding those discharged from locations caring for oncology, bone marrow transplant, or solid-organ transplant patients. Intervention: Introduction of electronic order sets designed to reduce inpatient fluoroquinolone prescribing. Results: Among 163,117 admissions, there were 683 cases of HO-CDI and 1,104 cases of PD-CDI. In the context of a 2% month-to-month decline starting in the preintervention period (P < .01), we observed a reduction in fluoroquinolone days of therapy per 1,000 patient days of 21% after the intervention (level change, P < .05). HO-CDI rates were stable throughout the study period. In contrast, we also detected a change in the trend of PD-CDI rates from a stable monthly rate in the preintervention period to a monthly decrease of 2.5% in the postintervention period (P < .01). Conclusions: Our systemwide intervention reduced inpatient fluoroquinolone use immediately, but not HO-CDI. However, a downward trend in PD-CDI occurred. Relying on outcome measures limited to the inpatient setting may not reflect the full impact of inpatient stewardship efforts.

Willingness to Discuss and Screen for Pre-Exposure Prophylaxis in Pharmacies Among Men Who Have Sex With Men.

OBJECTIVE: To determine the willingness to discuss and be screened for pre-exposure prophylaxis (PrEP) in pharmacies among MSM. METHODS: Led by Georgia's Fulton County Board of Health, this study surveyed individuals who attended 2 Atlanta-based Gay Pride events in 2018. This analysis was limited to those who identified as men who have sex with men (MSM) who were not HIV positive and reported never using PrEP. Multivariable regression was used to determine the correlates of willingness to discuss and be screened for PrEP in-pharmacy. RESULTS: Most (69%) were willing to discuss PrEP with pharmacy staff and 61.35% were willing to be screened for PrEP in-pharmacy. Those who were interested in PrEP were significantly more willing to discuss PrEP in-pharmacy compared to those not interested in PrEP (prevalence ratio [PR]: 1.65; 95% confidence interval [95% CI]: 1.11-2.48). Race was not associated with willingness to discuss PrEP with pharmacy staff. However, black MSM (BMSM) were less willing to be screened in pharmacies than white MSM, until we accounted for interest in PrEP (PR: 1.27; 95% CI: 1.09-1.48). DISCUSSION: Pharmacies may be an optimal setting to expand PrEP access to reach racial minorities who have the highest need but are not being reached. Pharmacy-based PrEP discussions and screening could improve awareness of HIV status and increase PrEP knowledge and uptake. Future studies should determine optimal pharmacy conditions under which PrEP screening and uptake are acceptable for BMSM.

Retrospective cohort study of COVID-19 among children in Fulton County, Georgia, March 2020-June 2021.

OBJECTIVE: To describe case rates, testing rates and percent positivity of COVID-19 among children aged 0-18 years by school-age grouping. DESIGN: We abstracted data from Georgia's State Electronic Notifiable Disease Surveillance System on all 10 437 laboratory-confirmed COVID-19 cases among children aged 0-18 years during 30 March 2020 to 6 June 2021. We examined case rates, testing rates and percent positivity by school-aged groupings, namely: preschool (0-4 years), elementary school (5-10 years), middle school (11-13 years), and high school (14-18 years) and compared these data among school-aged children with those in the adult population (19 years and older). SETTING: Fulton County, Georgia. MAIN OUTCOME MEASURES: COVID-19 case rates, testing rates and percent positivity. RESULTS: Over time, the proportion of paediatric cases rose substantially from 1.1% (April 2020) to 21.6% (April 2021) of all cases in the county. Age-specific case rates and test rates were consistently highest among high-school aged children. Test positivity was similar across school-age groups, with periods of higher positivity among high-school aged children. CONCLUSIONS: Low COVID-19 testing rates among children, especially early in the pandemic, likely underestimated the true burden of disease in this age group. Despite children having lower measured incidence of COVID-19, we found when broader community incidence increased, incidence also increased among all paediatric age groups. As the COVID-19 pandemic continues to evolve, it remains critical to continue learning about the incidence and transmissibility of COVID-19 in children.

Characteristics and Risk Factors for Hospitalization and Mortality among Persons with COVID-19 in Atlanta Metropolitan Area.

Background: We present data on risk factors for severe outcomes among patients with coronavirus disease 2019 (COVID-19) in the southeast United States (U.S.). Objective: To determine risk factors associated with hospitalization, intensive care unit (ICU) admission, and mortality among patients with confirmed COVID-19. Design: A retrospective cohort study. Setting: Fulton County in Atlanta Metropolitan Area, Georgia, U.S. Patients: Community-based individuals of all ages that tested positive for SARS-CoV-2. Measurements: Demographic characteristics, comorbid conditions, hospitalization, ICU admission, death (all-cause mortality), and severe COVID-19 disease, defined as a composite measure of hospitalization and death. Results: Between March 2 and May 31, 2020, we included 4322 individuals with various COVID-19 outcomes. In a multivariable logistic regression random-effects model, patients in age groups ≥45 years compared to those <25 years were associated with severe COVID-19. Males compared to females (adjusted odds ratio [aOR] 1.4, 95% confidence interval [CI]: 1.1-1.6), non-Hispanic blacks (aOR 1.9, 95%CI: 1.5-2.4) and Hispanics (aOR 1.7, 95%CI: 1.2-2.5) compared to non-Hispanic whites were associated with increased odds of severe COVID-19. Those with chronic renal disease (aOR 3.6, 95%CI: 2.2-5.8), neurologic disease (aOR 2.8, 95%CI: 1.8-4.3), diabetes (aOR 2.0, 95%CI: 1.5-2.7), chronic lung disease (aOR 1.7, 95%CI: 1.2-2.3), and "other chronic diseases" (aOR 1.8, 95%CI: 1.3-2.6) compared to those without these conditions were associated with increased odds of having severe COVID-19. Conclusions: Multiple risk factors for hospitalization, ICU admission, and death were observed in this cohort from an urban setting in the southeast U.S. Improved screening and early, intensive treatment for persons with identified risk factors is urgently needed to reduce COVID-19 related morbidity and mortality.

Preventing COVID-19 Outbreaks in Long-Term Care Facilities Through Preemptive Testing of Residents and Staff Members - Fulton County, Georgia, March-May 2020.

Long-term care facility (LTCF) residents are at particularly high risk for morbidity and mortality associated with infection with SARS-CoV-2, the virus that causes coronavirus disease 2019 (COVID-19), given their age and high prevalence of chronic medical conditions, combined with functional impairment that often requires frequent, close contact with health care providers, who might inadvertently spread the virus to residents (1,2). During March-May 2020 in Fulton County, Georgia, >50% of COVID-19-associated deaths occurred among LTCF residents, although these persons represented <1% of the population (3,4). Mass testing for SARS-CoV-2 has been an effective strategy for identifying asymptomatic and presymptomatic infections in LTCFs (5). This analysis sought to evaluate the timing at which mass testing took place in relation to the known presence of a COVID-19 infection and the resulting number of infections that occurred. In 15 LTCFs that performed facility-wide testing in response to an identified case, high prevalences of additional cases in residents and staff members were found at initial testing (28.0% and 7.4%, respectively), suggesting spread of infection had already occurred by the time the first case was identified. Prevalence was also high during follow-up, with a total of 42.4% of residents and 11.8% of staff members infected overall in the response facilities. In comparison, 13 LTCFs conducted testing as a preventive strategy before a case was identified. Although the majority of these LTCFs identified at least one COVID-19 case, the prevalence was significantly lower at initial testing in both residents and staff members (0.5% and 1.0%, respectively) and overall after follow-up (1.5% and 1.7%, respectively). These findings indicate that early awareness of infections might help facilities prevent potential outbreaks by prioritizing and adhering more strictly to infection prevention and control (IPC) recommendations, resulting in fewer infections than would occur when relying on symptom-based screening (6,7).

Mass Screening for SARS-CoV-2 Infection among Residents and Staff in Twenty-eight Long-term Care Facilities in Fulton County, Georgia.

Mass screening for SARS-CoV-2 infection in long-term care facilities revealed significantly higher prevalence of infection in facilities that screened in response to a known infection compared to those that screened as a prevention measure. "Response" facilities had a SARS-CoV-2 prevalence of 28.9% while "preventive" facilities' prevalence was 1.6% (p <0.001).

Health Care-Seeking Behaviors and Perceptions of Provider-Initiated Discussion of Pre-exposure Prophylaxis Among PrEP-Naïve HIV-Negative Men Who Have Sex With Men in Atlanta, Georgia.

BACKGROUND: Given high rates of HIV among men who have sex with men (MSM) in the United States, there is a need to more effectively leverage the health care system to bolster promotion of pre-exposure prophylaxis (PrEP) to at-risk MSM. METHODS: Using data collected from a 2018 venue-based cross-sectional survey, we examined factors associated with health care-seeking behaviors, discussing PrEP with a provider, and barriers to PrEP uptake among MSM. Associations between outcomes and respondents' sociodemographic characteristics and sexual behaviors were assessed using log binomial regression. RESULTS: Of 478 MSM, 247 (51%) were PrEP-naïve and HIV-negative. Although 85% of PrEP-naïve MSM reported visiting a health care provider in the past year, only 31% recalled having any provider discuss PrEP. The most frequently cited reasons for not taking PrEP were low perception of personal risk of acquiring HIV (37%) and not knowing enough about PrEP (35%). Those who saw a provider in the last year were less likely than those who did not to cite lack of knowledge as a barrier to use (prevalence rate, 0.66, 95% confidence interval, 0.45-0.96). CONCLUSIONS: Despite the majority of PrEP-naïve MSM interfacing with the health care system, recollection of discussing PrEP with providers was limited. Increased efforts to equip providers with the tools to discuss PrEP and address pressing concerns with at-risk individuals may help improve PrEP uptake among priority populations.

Using PrEP to #STOPHIVATL: Findings from a Cross-Sectional Survey Among Gay Men and Transgender Women Participating in Gay Pride Events in Atlanta, Georgia, 2018.

Assessing pre-exposure prophylaxis (PrEP) coverage and identifying reasons for disproportionate uptake among the varied social and cultural sub-groups of men who have sex with men (MSM) and transgender women who have sex with men (TWSM) are necessary precursors to setting attainable local PrEP. We report on findings of a cross-sectional survey among MSM/TWSM attending Gay pride events in Atlanta, Georgia, in 2018. Associations between PrEP awareness, uptake, and respondent characteristics were assessed using logistic regression. PrEP awareness did not differ by race, but current use was significantly lower among Blacks at substantial risk of HIV (p = .008). In multivariate analysis, clinician encounter in the past year was associated with awareness while age, income, drug use, sero-discordant sex, and multiple male partners were associated with current use. Among PrEP-naïve MSM/TWSM, the most common reasons for nonuse differed by race (poor knowledge of PrEP: Black-45% vs. non-Black-27%, p = .010, low perception of risk: Black-26% vs. non-Black-52%, p = .001). Key racial and socioeconomic disparities in active PrEP use and reasons for nonuse remain despite the recent increases in PrEP awareness and use among MSM/TWSM in Atlanta. Achieving overall improvement in uptake among all MSM/TWSM sub-groups will require tailoring PrEP educational messaging, optimizing communication modalities, expanding provider outreach, and identifying ways to defray costs for high-risk, underserved sub-groups in these populations.

Factors Associated with HIV Seroconversion Among Women Attending an Urban Health Clinic in the South: A Matched Case-Control Study.

Compared to knowledge about HIV risk factors among men in the south, less is known about risk factors for women. We conducted an individually matched case-control study to identify factors associated with HIV seroconversion among women. Cases had a clinician-assisted visit (CAV) between 2011 and 2016 at an Atlanta-based public health clinic before HIV diagnosis. Controls were women who visited the clinic but remained HIV negative. Controls were matched to cases in a 2:1 ratio on race, age at first CAV, and date of first CAV. Conditional logistic regression was used to develop a best-fitting model for characterizing HIV risk. Of 18,281 women who were HIV negative at their first visit, 110 (0.6%) seroconverted before 2019. Of these, 80 (73%) had a CAV before HIV diagnosis. Having multiple gonorrhea episodes, a syphilis episode, a greater number of sex partners in the past 2 months, anal sex, history of drug use, history of exchanging drugs or money for sex, and heterosexual sex with >1 sex partner in the last month were individually associated with HIV seroconversion. In multivariate analyses, having a syphilis episode [odds ratio (OR) = 4.7, 95% confidence interval (CI): 1.3-16.3], anal sex (OR = 2.8, 95% CI: 1.0-8.1), and injection drug or crack cocaine use (OR = 33.5, 95% CI: 3.6-313.3) remained associated with HIV. Women having all three risk factors were six times more likely to seroconvert compared to women without these factors. Our results offer insights into which women in a southern HIV "hotspot" may be at greatest risk for HIV.

PrEP Implementation and Persistence in a County Health Department Setting in Atlanta, GA.

For marginalized populations, county health departments may be important PrEP access points; however, there are little data on successful PrEP programs at these venues outside of incentivized demonstration projects. Therefore, we implemented an open-access, free PrEP clinic at a county health department in Atlanta, GA to promote PrEP uptake among high-risk clients. The Fulton County Board of Health PrEP clinic launched in October 2015, and eligible clients who expressed interest initiated PrEP and attended follow-up visits per CDC guidelines. Clients engaged in quarterly follow-up and seen within the last 6 months were defined as "persistent", whereas clients with a lapse in follow-up of > 6 months were defined as "not persistent." Factors associated with PrEP persistence were assessed with unadjusted odds ratios. Between October 2015 and June 2017, 399 clients were screened for PrEP, almost all were eligible [392/399 (98%)]; however, 158/392 (40%) did not return to start PrEP after screening. Of 234 patients, 216 (92%) received a prescription for PrEP. As of June 2017, only 69/216 (32%) clients remained persistent in PrEP care, and the only evaluated factor significantly associated with PrEP persistence was age ≥ 30 years (OR 1.86, 95% CI 1.02, 3.42). Implementation of PrEP in the county health department setting is feasible; however, we have identified significant challenges with PrEP uptake and persistence in our setting. Further research is needed to fully understand mediators of PrEP persistence and inform interventions to optimize health department-based PrEP services.

Using Directly Observed Therapy (DOT) for latent tuberculosis treatment - A hit or a miss? A propensity score analysis of treatment completion among 274 homeless adults in Fulton County, GA.

Latent tuberculosis infection (LTBI) treatment in persons at increased risk of disease progression is a key strategy with the strong potential to increase rate of tuberculosis (TB) decline in the United States. However, LTBI treatment in homeless persons, a population at high-risk of active TB disease, is usually associated with poor adherence. We describe the impact of using directly observed treatment (DOT) versus self-administered treatments (SAT) as an adherence-improving intervention to administer four months of daily rifampin regimen for LTBI treatment among homeless adults in Atlanta. Retrospective analysis of clinical care data on 274 homeless persons who initiated daily rifampin treatment for LTBI treatment at a county health department between January 2014 and December 2016 was performed. To reduce bias from non-random assignment of treatment, an inverse probability of treatment weighted (IPTW) logistic regression model was used to assess the effect of treatment type on treatment completion. Subgroup analyses were performed to assess heterogeneity of treatment effect on LTBI completion. Of 274 LTBI treatment initiators, 177 (65%) completed treatment [DOT 118/181 (65%), SAT 59/93 (63%)]. In the fully adjusted and weighted analysis, the odds of completing LTBI treatment on DOT was 40% higher than the odds of completing treatment by SAT [adjusted odds ratio (95% CI), aOR: 1.40 (1.07, 1.82), p = 0.014]. The unstable nature of homeless persons' lifestyle makes LTBI treatment difficult for many reasons. Our study lends support to the use of DOT to improve LTBI treatment completion among subgroups of homeless persons on treatment with daily rifampin.

QuantiFERON-TB Gold Versus Tuberculin Screening and Care Retention Among Persons Experiencing Homelessness: Georgia, 2015-2017.

Objectives. To characterize the cascade of care for latent tuberculosis infection (LTBI) in persons experiencing homelessness (PEH) and evaluate the effect of screening by QuantiFERON-TB Gold (QFT) versus tuberculin skin test (TST). Methods. We performed a retrospective cohort study of all PEH screened for LTBI by QFT and TST from May 2015 to April 2017 in Fulton County, Georgia. Results. There were 3504 PEH screened by QFT and 5509 by TST, with 2925 TSTs administered on site at community shelters and 2584 at the health department. More valid test results were obtained in those screened by QFT (99.0% vs 69.0%; P < .001) because of low return rates for reading in both TST arms. For tests administered on site, testing by QFT versus TST improved retention in care with significantly more estimated LTBI cases following up for a medical examination (67.8% vs 51.0%; P < .001) and starting LTBI treatment (58.4% vs 39.8%; P < .001). Conclusions. A QFT-based screening strategy in PEH improved diagnosis and retention in care for new LTBI cases compared with TST and may be an effective strategy to limit progression to active tuberculosis.

Response to Isoniazid-Resistant Tuberculosis in Homeless Shelters, Georgia, USA, 2015-2017.

In 2008, an outbreak of isoniazid-resistant tuberculosis was identified among residents of homeless shelters in Atlanta, Georgia, USA. When initial control efforts involving standard targeted testing failed, a comprehensive approach that involved all providers of services for the homeless successfully interrupted the outbreak.

Optimizing Prevention of HIV and Unplanned Pregnancy in Discordant African Couples.

BACKGROUND: Dual method use, which combines condoms with a more effective modern contraceptive to optimize prevention of HIV and unplanned pregnancy, is underutilized in high-risk heterosexual couples. MATERIALS AND METHODS: Heterosexual HIV-discordant Zambian couples were enrolled from couples' voluntary HIV counseling and testing services into an open cohort with 3-monthly follow-up (1994-2012). Relative to dual method use, defined as consistent condom use plus modern contraception, we examine predictors of (1) condom-only use (suboptimal pregnancy prevention) or (2) modern contraceptive use with inconsistent condom use (effective pregnancy prevention and suboptimal HIV prevention). RESULTS: Among 3,049 couples, dual method use occurred in 28% of intervals in M+F- and 23% in M-F+, p < 0.01; condom-only use in 56% in M+F- and 61% in M-F+, p < 0.01; and modern contraceptive use with inconsistent condom use in 16% regardless of serostatus. Predictors (p < 0.05) of condom-only use included the man being HIV+ (adjusted hazard ratio, aHR = 1.15); baseline oral contraceptive pill (aHR = 0.76), injectable (aHR = 0.48), or implant (aHR = 0.60) use; woman's age (aHR = 1.04 per 5 years) and lifetime number of sex partners (aHR = 1.01); postpartum periods (aHR = 1.25); and HIV stage of the index partner III/IV versus I (aHR = 1.10). Predictors (p < 0.05) of modern contraceptive use with inconsistent condom use included woman's age (aHR = 0.94 per 5 years) and HIV+ male circumcision (aHR = 1.51), while time-varying implant use was associated with more consistent condom use (aHR = 0.80). CONCLUSIONS: Three-quarters of follow-up intervals did not include dual method use. This highlights the need for counseling to reduce unintended pregnancy and HIV transmission and enable safer conception.