Predictors of Severe Acute Respiratory Syndrome Coronavirus 2 Infection Following High-Risk Exposure.

BACKGROUND: Non-pharmaceutical interventions (NPIs) are recommended for COVID-19 prevention. However, the effectiveness of NPIs in preventing SARS-CoV-2 transmission remains poorly quantified. METHODS: We conducted a test-negative design case-control study enrolling cases (testing positive for SARS-CoV-2) and controls (testing negative) with molecular SARS-CoV-2 diagnostic test results reported to California Department of Public Health between 24 February-12 November, 2021. We used conditional logistic regression to estimate adjusted odds ratios (aORs) of case status among participants who reported contact with an individual known or suspected to have been infected with SARS-CoV-2 ("high-risk exposure") ≤14 days before testing. RESULTS: 751 of 1448 cases (52%) and 255 of 1443 controls (18%) reported high-risk exposures ≤14 days before testing. Adjusted odds of case status were 3.02-fold (95% confidence interval: 1.75-5.22) higher when high-risk exposures occurred with household members (vs. other contacts), 2.10-fold (1.05-4.21) higher when exposures occurred indoors (vs. outdoors only), and 2.15-fold (1.27-3.67) higher when exposures lasted ≥3 hours (vs. shorter durations) among unvaccinated and partially-vaccinated individuals; excess risk associated with such exposures was mitigated among fully-vaccinated individuals. Cases were less likely than controls to report mask usage during high-risk exposures (aOR = 0.50 [0.29-0.85]). The adjusted odds of case status was lower for fully-vaccinated (aOR = 0.25 [0.15-0.43]) participants compared to unvaccinated participants. Benefits of mask usage were greatest among unvaccinated and partially-vaccinated participants, and in interactions involving non-household contacts or interactions occurring without physical contact. CONCLUSIONS: NPIs reduced the likelihood of SARS-CoV-2 infection following high-risk exposure. Vaccine effectiveness was substantial for partially and fully vaccinated persons.

The Relationship Between Harmful Alcohol Use and Antiretroviral Non-adherence in People Accessing HIV Treatment in Cape Town, South Africa: An Event-Level Analysis.

Harmful alcohol consumption can significantly compromise adherence to antiretroviral therapy (ART). Prior research has identified aggregate relationships between alcohol use and ART non-adherence, largely relying on concurrent assessment of these domains. There is relatively limited evidence on more nuanced day-level associations between alcohol use and ART non-adherence, despite potentially important clinical implications. We recruited adults with HIV treatment adherence challenges and harmful alcohol use (n = 53) from HIV care in South Africa. We examined relationships between alcohol use and same and next day ART adherence, accounting for the role of weekends/holidays and participant demographics, including gender. Results demonstrated that ART adherence was significantly worse on weekend/holiday days. Next day adherence was significantly worse in the context of weekend alcohol use and among men. These results suggest the importance of tailoring intervention strategies to support ART adherence during weekend drinking and for men engaged in heavy episodic drinking.

Implementing Task-Shared Child and Adolescent Psychological Interventions in Low- and Middle-Income Countries: A Scoping Review.

OBJECTIVE: Effective "task shared," or nonspecialist delivered, psychological interventions for children and adolescents have been developed or adapted in low- and middle-income countries with the aim of closing the global treatment gap for youth mental health care. Yet, delivery remains limited, in part due to the lack of knowledge of associated implementation, or process, outcomes. This scoping review aims to describe, examine the quality of, and synthesize findings on implementation outcomes of child and adolescent psychological interventions in low-and middle-income countries. METHODS: PubMed, Web of Science, and PsycInfo were searched for studies on child and adolescent psychological interventions in low- and middle-income countries reporting on implementation outcomes. After abstract and full-text review, data were extracted and summarized on implementation outcomes and quality of implementation outcomes reporting. Implementation barriers and recommendations for addressing barriers were also charted and narratively synthesized. RESULTS: Out of 5,207 manuscripts, 86 met inclusion criteria. Younger children were underrepresented. Studies largely reported feasibility and acceptability and did not state hypotheses or use conceptual models. Barriers primarily related to interventions being too complex, not an acceptable fit with participant cultures, and facilitators lacking time for or experiencing distress delivering interventions. Recommendations focused on increasing intervention fit and flexibility, training and support for facilitators, and linkages with existing systems. CONCLUSIONS: Rigorous, broader implementation outcomes research is needed within child and adolescent psychological intervention research in low-and middle-income countries. Current evidence suggests the importance of the further developing strategies to increase acceptability to participants and better support facilitators.

Culturally competent diabetic education to lower hemoglobin A1c levels of diabetic patients: Está mejor.

This study assessed the effectiveness of a modified diabetic education class in lowering the hemoglobin Alc (HbA1c) levels of diabetic patients. Modifications included having bilingual educators facilitate the class, providing food models common to Mexican-American diets, and supplying education materials in Spanish. We reviewed the charts of 100 diabetic patients who had been scheduled to attend the diabetic class in a community health center. A significant difference (P=.001) was found between the baseline and follow-up levels of HbA1 c in patients who attended the class (who showed a mean difference of 1.81 mm/dL) compared with those who did not (who showed a mean difference of only 0.63 mm/dL, which was not statistically significant). No significant difference (P>.05) was found in the baseline HbA1c levels of those who attended the class (8.33 mm/dL) compared with those who did not attend (8.8 mm/dL). This study showed that the modified class was effective in lowering the HbA1c of diabetic patients. The diabetic class was underused, with only 54% attendance. Through this study, we suggest that health care providers should implement strategies by actively reaching out and tailoring education to the needs of their patients.

Functional RNA microarrays for high-throughput screening of antiprotein aptamers.

High-throughput methods for generating aptamer microarrays are described. As a proof-of-principle, the microarrays were used to screen the affinity and specificity of a pool of robotically selected antilysozyme RNA aptamers. Aptamers were transcribed in vitro in reactions supplemented with biotinyl-guanosine 5'-monophosphate, which led to the specific addition of a 5' biotin moiety, and then spotted on streptavidin-coated microarray slides. The aptamers captured target protein in a dose-dependent manner, with linear signal response ranges that covered seven orders of magnitude and a lower limit of detection of 1 pg/mL (70 fM). Aptamers on the microarray retained their specificity for target protein in the presence of a 10,000-fold (w/w) excess of T-4 cell lysate protein. The RNA aptamer microarrays performed comparably to current antibody microarrays and within the clinically relevant ranges of many disease biomarkers. These methods should also prove useful for generating other functional RNA microarrays, including arrays for genomic noncoding RNAs that bind proteins. Integrating RNA aptamer microarray production with the maturing technology for automated in vitro selection of antiprotein aptamers should result in the high-throughput production of proteome chips.