ABSTRACT
BACKGROUND: Previous studies have reported Blood type O to confer a lower risk of SARS-CoV-2 infection, while secretor status and other blood groups have been suspected to have a similar effect as well. STUDY DESIGN AND METHODS: To determine whether any other blood groups influence testing positive for SARS-CoV-2, COVID-19 severity, or prolonged COVID-19, we used a large cohort of 650,156 Danish blood donors with varying available data for secretor status and blood groups ABO, Rh, Colton, Duffy, Diego, Dombrock, Kell, Kidd, Knops, Lewis, Lutheran, MNS, P1PK, Vel, and Yt. Of these, 36,068 tested positive for SARS-CoV-2 whereas 614,088 tested negative between 2020-02-17 and 2021-08-04. Associations between infection and blood groups were assessed using logistic regression models with sex and age as covariates. RESULTS: The Lewis blood group antigen Lea displayed strongly reduced SARS-CoV-2 susceptibility OR 0.85 CI[0.79-0.93] p < .001. Compared to blood type O, the blood types B, A, and AB were found more susceptible toward infection with ORs 1.1 CI[1.06-1.14] p < .001, 1.17 CI[1.14-1.2] p < .001, and 1.2 CI[1.14-1.26] p < .001, respectively. No susceptibility associations were found for the other 13 blood groups investigated. There was no association between any blood groups and COVID-19 hospitalization or long COVID-19. No secretor status associations were found. DISCUSSION: This study uncovers a new association to reduced SARS-CoV-2 susceptibility for Lewis type Lea and confirms the previous link to blood group O. The new association to Lea could be explained by a link between mucosal microbiome and SARS-CoV-2.
ABSTRACT
Background: Mental health has been identified by the World Health Organization as an integral component of the COVID-19 response. Aims: This study aimed to estimate the impact of COVID-19 pandemic on mental, neurological and substance use disorders (MNS) services in the Eastern Mediterranean Region. Methods: The assessment was conducted through a web-based survey that was completed by national mental health focal persons and was analysed between June and August 2020. Results: School and workplace mental health services were wholly or partially disrupted in more than 70% of reporting countries. Fewer than 20% of the countries in the Region reported full operations of mental health services for children and adolescents or for older adults. The main reasons were travel restrictions, decreases in inpatient volumes due to the cancellation of elective care, decreases in outpatient volumes due to patients not presenting, and health authority directives for the closure of outpatient services. The majority (85%) of countries responded by establishing MNS helplines using telemedicine/teletherapy and digital psychological interventions. The fragile and conflict-affected states relied mostly on implementing infection prevention and control measures at MNS service facilities. Gaps were identified in the areas of addictive behaviours, substance use and neurology research related to the pandemic. Conclusion: The assessment highlights the need to strengthen capacities for monitoring changes in service delivery and utilization, and documents evidence on what works in different settings during the different phases of the pandemic to facilitate informed decisions related to the nature and timing of adaptations to service delivery.