Background: Understanding humoral responses and seroprevalence in SARS-CoV-2 infection is essential for guiding vaccination strategies in both infected and uninfected individuals. Methods: We determine the kinetics of IgM against the nucleocapsid (N) and IgG against the spike (S) and N proteins of SARS-CoV-2 in a cohort of 860 health professionals (healthy and infected) in northern Barcelona. We model the kinetics of IgG and IgM at nine time points over 13.5 months from infection, using non-linear mixed models by sex and clinical disease severity. Results: Of the 781 participants who were followed up, 478 (61.2%) became infected with SARS-CoV-2. Significant differences were found for the three antibodies by disease severity and sex. At day 270 after diagnosis, median IgM(N) levels were already below the positivity threshold in patients with asymptomatic and mild-moderate disease, while IgG(N, S) levels remained positive to days 360 and 270, respectively. Kinetic modelling showed a general rise in both IgM(N) and IgG(N) levels up to day 30, followed by a decay whose rate depended on disease severity. IgG(S) levels increased at day 15 and remained relatively constant over time. Conclusions: We describe kinetic models of IgM(N) and IgG(N, S) SARS-CoV-2 antibodies at 13.5 months from infection and disease spectrum. Our analyses delineate differences in the kinetics of IgM and IgG over a year and differences in the levels of IgM and IgG as early as 15 days from symptoms onset in severe cases. These results can inform public health policies around vaccination criteria.
The process of international migration causes a situation of vulnerability in people’s health and greater difficulty in coping with disease. Furthermore, the adversities suffered during migration can trigger reactive signs of stress and cause anxious, depressive, confusional and somatic symptoms. This article studies the relationships between psychosocial risk, psychological distress and somatization in immigrants from four communities: Maghrebis, Sub-Saharans, South Americans and South Asian. A cross-sectional study was carried out with questionnaires on 602 immigrants who were surveyed in the primary care centers of an urban area of Catalonia. The instruments used were the Demographic Psychosocial Inventory (DPSI), the Brief Symptom Inventory (BSI) and the Somatic Symptom Inventory (SSI). The average psychosocial risk obtained was 0.35, with the highest values in the Sub-Saharan community. Psychological distress showed a mean value of 0.66, with the Sub-Saharan community scoring the lowest in all dimensions except depression. The average somatization values were 1.65, with the Sub-Saharan community scoring the least. The female gender is a risk factor for somatization and psychological distress. Perceived psychosocial risk is a predictor of psychological distress, but not somatization, suggesting that the use of more adaptive coping strategies could minimize the effect of the migration process on somatizations.
There is a gap between the preferences of immigrant patients and their experiences with intercultural communication. This study aims to explore the experiences and perspectives of long-stay immigrants on intercultural communication in encounters with primary care (PC) nurses. Participants were selected by purposive sampling at the Maresme Primary Care Center. A focus group and five in-depth interviews with long-stay immigrants from eight countries were carried out. Data collection was guided by a script previously validated by a group of experts. We conducted a qualitative analysis following Charmaz’s approach, and data saturation was reached with 11 patients (one focus group and five interviews). Long-stay immigrants would like closer and more personalized communication exchanges with greater humanity, as well as polite and respectful manners as they perceive signs of an asymmetrical care relationship. Those who had negative communication experiences tried to justify some of the behaviors as a result of having free access to public health services. This is one of the few existing studies from the point of view of long-stay immigrants. Achieving effective intercultural communication requires a process of self-reflection, awareness-raising and commitment, both on a personal and institutional level, to eliminate the asymmetry in the nurse-patient relationship. Nurses should be trained in person-centered intercultural communication.
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