COVID-19 and mental health among college students in the southwestern United States.

Objective: We examined COVID-19-related experiences, mental health, and future plans among US undergraduate and graduate students in the initial months of the pandemic. Participants: 72 students (68% female; 51.4% white; age x- =24.4) from 21 colleges in the US southwest concurrently enrolled in a stress-reduction study. Methods: Between March and June 2020, participants completed an online survey about demographics, personal and vicarious COVID-19 experiences, mood, and future plans. Anxiety and depression symptoms were assessed with the GAD-7 and PHQ-9, respectively. Results: Worry about COVID-19 was associated with anxiety and depression symptoms and personal and vicarious experiences with COVID-19. COVID-19 worry varied by illness severity and level of intimacy with those impacted. Most participants reported changing educational (66.7%) and life (55.6%) plans due to COVID-19. Conclusions: Given the continued impact of COVID-19 on physical/emotional health and future plans, universities should assist students in managing COVID-19-related stress so they can continue to learn and grow.

Advocate and Survivor Perspectives on the Role of Technology in Help Seeking and Services with Emerging Adults in Higher Education.

Emerging adults, aged 18-25, have come of age in a technology oriented world. The internet has been critical in mediating their personal relationships and their understanding of daily life. Emerging adults are also at unique risk of experiencing intimate partner and sexual violence (IPV & SV) Given the increasing infusion of information communication technology (ICT) into anti-violence advocacy, and the broad use of ICT among college-attending emerging adults, this study aimed to explore how both survivors and advocates are leveraging technology for support. Using a QUAL + qual methodology (Morse and Niehaus, 2009), data were collected as part of an evaluation of campus-based advocacy as implemented in five programs. Interviews took place with 23 campus and community-based advocates, and 25 survivors of interpersonal violence who had accessed campus-based advocacy services. Additionally, 63 survivors who engaged in campus-based advocacy services responded to an online survey. Key domains identified were: 1) technology as a means of informing potential clients about services; 2) the role of technology in help-seeking, including its role in tailoring and extending the reach of services; and 3) the importance of recognizing technology facilitated abuse in the advocacy and education process with emerging adults. As advocacy programs are rapidly shifting to technology facilitated services in the wake of COVID-19, this study provides data on advocate and survivor experiences with technology, which can inform these changes across the spectrum of IPV & SV services.

User Experience With Low-Cost Virtual Reality Cancer Surgery Simulation in an African Setting.

PURPOSE: Limited access to adequate cancer surgery training is one of the driving forces behind global inequities in surgical cancer care. Affordable virtual reality (VR) surgical training could enhance surgical skills in low- and middle-income settings, but most VR and augmented reality systems are too expensive and do not teach open surgical techniques commonly practiced in these contexts. New low-cost VR can offer skill development simulations relevant to these settings, but little is known about how knowledge is gained and applied by surgeons training and working in specific resource-constrained settings. This study addresses this gap, exploring gynecologic oncology trainee learning and user experience using a low-cost VR simulator to learn to perform an open radical abdominal hysterectomy in Lusaka, Zambia. METHODS: Eleven surgical trainees rotating through the gynecologic oncology service were sequentially recruited from the University Teaching Hospital in Lusaka to participate in a study evaluating a VR radical abdominal hysterectomy training designed to replicate the experience in a Zambian hospital. Six participated in semi-structured interviews following the training. Interviews were analyzed using open and axial coding, informed by grounded theory. RESULTS: Simulator participation increased participants' perception of their surgical knowledge, confidence, and skills. Participants believed their skills transferred to other related surgical procedures. Having clear goals and motivation to improve were described as factors that influenced success. CONCLUSION: For cancer surgery trainees in lower-resourced settings learning medical and surgical skills, even for those with limited VR experience, low-cost VR simulators may enhance anatomical knowledge and confidence. The VR simulator reinforced anatomical and clinical knowledge acquired through other modalities. VR-enhanced learning may be particularly valuable when mentored learning opportunities are limited.

Relationships among microbial indicators of fecal pollution, microbial source tracking markers, and pathogens in Costa Rican coastal waters.

Tropical coastal waters are understudied, despite their ecological and economic importance. They also reflect projected climate change scenarios for other climate zones, e.g., increased rainfall and water temperatures. We conducted an exploratory microbial water quality study at a tropical beach influenced by sewage-contaminated rivers, and tested the hypothesis that fecal microorganisms (fecal coliforms, enterococci, Clostridium perfringens, somatic and male-specific coliphages, pepper mild mottle virus (PMMoV), Bacteroides HF183, norovirus genogroup I (NoVGI), Salmonella, Cryptosporidium and Giardia) would vary by season and tidal stage. Most microorganisms' concentrations were greater in the rainy season; however, NoVGI was only detected in the dry season and Cryptosporidium was the only pathogen most frequently detected in rainy season. Fecal indicator bacteria (FIB) levels exceeded recreational water quality criteria standards in >85% of river samples and in <50% of ocean samples, regardless of the FIB or regulatory criterion. Chronic sewage contamination was demonstrated by detection of HF183 and PMMoV in 100% of river samples, and in >89% of ocean samples. Giardia, Cryptosporidium, Salmonella, and NoVGI were frequently detected in rivers (39%, 39%, 26%, and 39% of samples, respectively), but infrequently in ocean water, particularly during the dry season. Multivariate analysis showed that C. perfringens, somatic coliphage, male-specific coliphage, and PMMoV were the subset of indicators that maximized the correlation with pathogens in the rivers. In the ocean, the best subset of indicators was enterococci, male-specific coliphage, and PMMoV. We also executed redudancy analyses on environmental parameters and microorganim concentrations, and found that rainfall best predicted microbial concentrations. The seasonal interplay of rainfall and pathogen prevalence undoubtedly influences beach users' health risks. Relationships are likely to be complex, with some risk factors increasing and others decreasing each season. Future use of multivariate approaches to better understand linkages among environmental conditions, microbial predictors (fecal indicators and MST markers), and pathogens will improve prediction of high-risk scenarios at recreational beaches.

Revisiting tuberculosis risk in Peace Corps Volunteers, 2006-13.

BACKGROUND: Risk of tuberculosis (TB) is generally considered to be low for long-term travellers, though risk varies with travel destination, duration and purpose. Peace Corps Volunteers (PCVs) serve for 27 months as community-level development workers in various countries around the world and may be exposed to TB in the course of their service. This study examines recent trends in TB in PCVs and compares rates with a previous analysis published by Jung and Banks. METHODS: Tuberculosis case data submitted to the Peace Corps' Epidemiologic Surveillance System by Peace Corps Medical Officers and gathered from Federal Employees Compensation Act claims for latent TB infection (LTBI) and active TB between 2006 and 2013 were aggregated and analysed for trends and significance. RESULTS: Overall, there were 689 cases of LTBI and 13 cases of active TB, for a rate of 0.95 cases of LTBI [95% confidence interval (CI) 0.88-1.02] and 0.02 cases of active TB (95% CI 0.01-0.03) per 1000 Volunteer-months. Both are significantly lower than rates presented in the initial study (P < 0.001). Per-country incidence rates for LTBI ranged from 0.00 to 4.52 cases per 1000 Volunteer-months. Per-country active TB rates ranged from 0.00 to 0.78 cases per 1000 Volunteer-months. Among the 13 cases of active TB, there was one successfully treated case of extensively drug-resistant TB. CONCLUSIONS: Overall rates of both active and latent TB in PCVs were significantly lower compared with the previous study period. PCVs continue to have statistically significantly higher rates of active TB compared with the general US population but lower rates compared with other long-term travellers.

spa Typing and Multilocus Sequence Typing Show Comparable Performance in a Macroepidemiologic Study of Staphylococcus aureus in the United States.

A number of molecular typing methods have been developed for characterization of Staphylococcus aureus isolates. The utility of these systems depends on the nature of the investigation for which they are used. We compared two commonly used methods of molecular typing, multilocus sequence typing (MLST) (and its clustering algorithm, Based Upon Related Sequence Type [BURST]) with the staphylococcal protein A (spa) typing (and its clustering algorithm, Based Upon Repeat Pattern [BURP]), to assess the utility of these methods for macroepidemiology and evolutionary studies of S. aureus in the United States. We typed a total of 366 clinical isolates of S. aureus by these methods and evaluated indices of diversity and concordance values. Our results show that, when combined with the BURP clustering algorithm to delineate clonal lineages, spa typing produces results that are highly comparable with those produced by MLST/BURST. Therefore, spa typing is appropriate for use in macroepidemiology and evolutionary studies and, given its lower implementation cost, this method appears to be more efficient. The findings are robust and are consistent across different settings, patient ages, and specimen sources. Our results also support a model in which the methicillin-resistant S. aureus (MRSA) population in the United States comprises two major lineages (USA300 and USA100), which each consist of closely related variants.

Molecular characterization of Staphylococcus aureus in the United States 2004-2008 reveals the rapid expansion of USA300 among inpatients and outpatients.

To assess the clonal structure of Staphylococcus aureus in the United States, we performed a molecular epidemiological study of 1,055 S. aureus isolates from a nationally representative clinical isolate collection from 2004-2008. Resistant and susceptible isolates were typed with multilocus sequence typing, tested for the presence of Panton-Valentine leukocidin (PVL), and serotyped. USA300 (multilocus sequence typing clonal complex 8, PVL positive, and methicillin-resistant) was the most frequently isolated clone, expanding from 12% of all isolates in 2004 to 38% in 2006. The USA300 clone increased significantly in frequency among both outpatients and inpatients. USA300 increased in both skin and soft-tissue and invasive infection isolates. The second most frequently observed clone was clonal complex 5, PVL-negative, and methicillin-resistant, and its frequency was stable from 2004-2008. The methicillin-susceptible S. aureus in the study was polyclonal, and decreased in frequency as it was replaced by USA300.

Prevalence and sequence variation of panton-valentine leukocidin in methicillin-resistant and methicillin-susceptible staphylococcus aureus strains in the United States.

Panton-Valentine leukocidin (PVL), encoded by the lukSF-PV genes, is a putative virulence factor and marker for community-associated methicillin-resistant Staphylococcus aureus. Here we report the prevalence of PVL among a representative sample of 1,055 S. aureus infection isolates from the United States and describe the sequence variation of the lukSF-PV genes. We performed multilocus sequence typing (MLST) on all isolates and sequenced fragments of the lukSF-PV genes from a sample of 86 isolates. We assigned isolates to a PVL R or H sequence type based on a polymorphism that results in an amino acid change from arginine (R) to histidine (H). Overall, we found that 36% of S. aureus isolates were positive for lukSF-PV. Among the 86 we typed, we identified 72 R variants and 14 H variants. Among the 47 methicillin-resistance S. aureus (MRSA) isolates, 43 harbored the R variant, and among the 39 methicillin-susceptible S. aureus (MSSA) isolates, 29 harbored the R variant. Almost all (97%) of the R variants were found in MLST clonal complex 8 (CC8), while the H variant was broadly distributed among 6 CCs. Within CC8, all 38 MRSA (USA300) and all 28 MSSA isolates harbored the R variant. Of the 20 isolates from blood and the lower respiratory tract, 19 (95%) harbored the R variant. While the R variant had been linked primarily to USA300 MRSA, we found that all CC8 MSSA isolates also contained the R variant, suggesting that some strains of USA300 may have lost methicillin resistance as an adaptation in the community.