Tuberculosis and Chronic Hepatitis B Virus Infection Screening Among Non-US-Born Persons in an Integrated Health System in California.

Background: Tuberculosis infection (TBI) and chronic hepatitis B virus (HBV) infection disproportionately affect non-US-born persons. Early identification and treatment are critical to reduce transmission, morbidity, and mortality, but little is known about screening in the United States. Methods: We conducted a cross-sectional study in a large integrated California health system in September 2022 assessing TBI and HBV screening among persons aged ≥18 years who were born in countries with high TB burden (TB disease incidence rates ≥20/100 000 population) and/or HBV burden (hepatitis B surface antigen seroprevalence >2%). Results: Of 510 361 non-US-born persons born in countries with high TB burden, 322 027 (63.1%) were born in countries with high HBV burden and 188 334 (36.9%) in countries with only high TB burden. Among persons born in countries with high TB and HBV burden, 29.6% were screened for TBI, 64.5% for HBV, and 23.4% for TBI and HBV; 9.9% had TBI and 3.1% had HBV infection. Among persons born in countries with high TB burden only, 27.9% were screened for TBI and 7.5% had TBI. Conclusions: Among non-US-born persons from countries with high TB and HBV burden, we found low screening rates and elevated prevalence of TBI and chronic HBV infection. Cotesting for TBI and HBV infection in non-US-born persons from countries with high TB and HBV burden might improve outcomes by identifying persons who warrant TBI treatment, HBV treatment, or HBV vaccination. Increased screening is the first step in reducing health inequities and overall disease burden.

Concurrent Sexually Transmitted Infections with Mpox Infections: A Brief Review.

Mpox is a viral zoonotic infection endemic to countries in Central and West Africa. The outbreak that began in May 2022 is novel for its global spread and transmission through sexual encounters. Research of this outbreak shows a high rate of concurrent sexually transmitted infections (STIs) in patients with mpox, highlighting the need to consider STIs in mpox management, and to raise awareness of historically high levels of STIs caused by inadequacies in sexual health care. It is critical to prioritize sexual health and address health disparities to control current transmission of infections and prevent future outbreaks.

An Atypical Presentation of Mpox Transmitted Between Transgender Men Through Oral Sex.

ABSTRACT: The current multicountry outbreak of mpox in 2022 is the first occurrence of widespread transmission in nonendemic countries. Prior cases in the United States involved exposure through foreign travel or direct contact with infected rodents. Reports of the current outbreak have predominately described spread through sexual encounters between cis-gender men who have sex with men. We report a unique case of mpox in which the transmission occurred through oral sex between 2 transgender men, with a short incubation period and progressive asynchronous emergence of lesions. Continued analysis of transmission routes and awareness will improve timely prevention, diagnosis and treatment.

Antimicrobial susceptibility and ribotypes of Clostridium difficile isolates from a Phase 2 clinical trial of ridinilazole (SMT19969) and vancomycin.

Objectives: We evaluated the antimicrobial susceptibility and ribotypes of Clostridium difficile isolates from participants in a Phase 2 study of ridinilazole, a novel targeted-spectrum agent for treatment of C. difficile infection. Methods: Participants received ridinilazole (200 mg twice daily) or vancomycin (125 mg four times daily) for 10 days (ClinicalTrials.gov: NCT02092935). The MICs of ridinilazole and comparators for C. difficile isolates from stool samples were determined by agar dilution. Toxin gene profiling was performed by multiplex PCR and ribotype identification by capillary electrophoresis. Results: Eighty-nine isolates were recovered from 88/100 participants (one participant had two strains at baseline). The median colony count (cfu/g stool) was 1.9 × 104 (range: 2.5 × 102-7.0 × 106). Twelve participants (three received ridinilazole and nine received vancomycin) experienced recurrence, confirmed by immunoassays for free toxin in stool samples. The ribotype of eight out of nine isolates obtained at recurrence matched those of the initial isolates. All isolates, including those obtained at recurrence, were susceptible to ridinilazole within the expected range [median (range) MIC: 0.12 (0.06-0.5) mg/L]. The median (range) vancomycin MIC was 1 (0.5-4.0) mg/L. At baseline, 13.6% and 13.3% of samples in the ridinilazole and vancomycin groups were positive for VRE, increasing to 23.7% and 29.7% by day 40, respectively. Common ribotypes included 014-20 (14 isolates), 027 (13), 106 (7), 002 (7), 078-126 (4), 001 (4), 087 (3) and 198 (3). Toxin gene profiling of nearly all baseline isolates (98.9%) revealed a binary toxin gene (cdtA/cdtB) prevalence of 35%. Conclusions: Ridinilazole potently inhibited recovered C. difficile isolates. Recurrence was not associated with altered susceptibility.

Evaluation of a Healthcare-Associated Urinary Tract Infection Combination Antibiogram.

We created a 2013 combination antibiogram of healthcare-associated urinary tract infection. The 2013 antibiogram-determined regimen was evaluated in a 2014 cohort who had received empirical therapy. The regimen was statistically more likely to represent adequate treatment than actual prescriptions. A customized antibiogram may guide empirical therapy for specific patients. Infect Control Hosp Epidemiol 2016;37:1101-1104.