TELEMEDICINE DURING COVID-19 PANDEMIC IS AN ACCEPTABLE MODALITY FOR LIVER CARE DELIVERY IN VULNERABLE POPULATIONS WITH FATTY LIVER DISEASE

Background and Aim: The COVID-19 pandemic has modified liver disease-related care delivery with implementation of telemedicine, previously unavailable in safety net settings. We aimed to assess patient satisfaction with telemedicine for hepatology care (telehepatology) in vulnerable populations with fatty liver disease (FLD). Methods: From 06/01/2020-11/ 30/2021, 218 consecutive participants with non-alcoholic or alcohol-related FLD with or without advanced fibrosis/cirrhosis receiving care in hepatology clinics within the San Francisco safety net health care system were surveyed by phone or in person. Sociodemographic and clinical parameters were captured by self-report and through the electronic medical record. Satisfaction with telehepatology was measured using a Likert scale from 1-5 with 1 representing “very dissatisfied” and 5 representing “very satisfied”. Median time of survey assessment since onset of the pandemic (03/01/2020) was 60.3 (range 8.7-90.3) weeks. Alcohol use in the prior 12 months was categorized as none, moderate (#1 drink/day for women and #2 drinks/day for men), and heavy (>moderate). Severity of liver disease was assessed by liver biopsy (n=97), MR elastography (n=88), or presence of liver nodularity on abdominal imaging (n=33). Descriptive analyses were performed and multivariable models were used to assess factors associated with satisfaction with telehepatology, adjusting for age, sex, and time since pandemic onset. Results: Median participant age was 52 years, 62% were female;60% Hispanic, 20% Asian, 11% White, 3% Black, 6% other race/ethnicity;and 75% were non-English speakers. 37% used alcohol (23% had heavy alcohol use), 40% had diabetes, and 35% had advanced (stage 3-4) fibrosis/cirrhosis. 166 participants (76%) had received telemedicine care and 126 (58%) had telehepatology. Overall, 72% reported satisfaction (55% very satisfied) with telehepatology. A similar proportion of those with and without advanced fibrosis/cirrhosis were satisfied with telehepatology (70% vs 71%, p=1.0). Alcohol consumption (vs none) especially moderate use appeared to be associated with less satisfaction (Coef -1.1, p=0.004 for moderate use and Coef -0.5, p=0.2 for heavy use) but no other sociodemographic or clinical factors were associated with telehepatology satisfaction on multivariable analysis. Conclusions: In this diverse and vulnerable population, in which a significant proportion had advanced fibrosis/cirrhosis FLD, over 70% were satisfied with telehepatology. Importantly, alcohol use negatively impacted perceived satisfaction with telehepatology, suggesting that patients who use alcohol may benefit from adaptations to telemedicine care delivery. As vulnerable populations have known barriers to healthcare access, telehepatology represents an important modality for liver care, and has the potential for reducing health disparities.

Transmission of viral pathogens in a social network of university students: the eX-FLU study.

Previous research on respiratory infection transmission among university students has primarily focused on influenza. In this study, we explore potential transmission events for multiple respiratory pathogens in a social contact network of university students. University students residing in on-campus housing (n = 590) were followed for the development of influenza-like illness for 10-weeks during the 2012-13 influenza season. A contact network was built using weekly self-reported contacts, class schedules, and housing information. We considered a transmission event to have occurred if students were positive for the same pathogen and had a network connection within a 14-day period. Transmitters were individuals who had onset date prior to their infected social contact. Throat and nasal samples were analysed for multiple viruses by RT-PCR. Five viruses were involved in 18 transmission events (influenza A, parainfluenza virus 3, rhinovirus, coronavirus NL63, respiratory syncytial virus). Transmitters had higher numbers of co-infections (67%). Identified transmission events had contacts reported in small classes (33%), dormitory common areas (22%) and dormitory rooms (17%). These results suggest that targeting person-to-person interactions, through measures such as isolation and quarantine, could reduce transmission of respiratory infections on campus.

Coronaviruses

Coronaviruses of humans were first identified more than 60 years ago from individuals with respiratory infections, mainly mild. Two different viruses, 229E and OC43 were initially recognized. Because of difficulty in isolating them using standard techniques, many of the early studies of their occurrence were seroepidemiologic. They were confirmed to be worldwide in distribution, and, in the North Temperate Zone, mainly occurring in the winter season. With the development of the reverse transcriptase polymerase chain reaction (PCR) technique, two additional distinct viruses have been identified, HKU1 and NL63. The four viruses have now been recognized as important in the etiology of common respiratory infections, second only to the rhinoviruses.In 2002, a previously unrecognized betacoronavirus emerged from a zoonotic reservoir in Southern China and spread during the following year to several major cities of the world. The resulting illness was termed Severe Acute Respiratory Syndrome (SARS) because of its potential lethality. More than 8,000 probable cases were reported during 2003, mainly from Hong Kong and mainland China, producing social and economic disruption in those areas affected. A constant feature of the outbreak was the importance of nosocomial spread. In spite of an estimated basic reproductive number higher than influenza, the outbreak was ended, in large part because of control of in-hospital transmission. In 2012, another betacoronavirus has emerged in the Arabian peninsula which is producing a somewhat similar illness, termed Middle East Respiratory Syndrome (MERS), also marked by extensive nosocomial transmission. The outcome of this emergence is currently unknown. FAU - Monto, Arnold S.