Evaluation of SARS-CoV-2 ORF7a Deletions from COVID-19-Positive Individuals and Its Impact on Virus Spread in Cell Culture.

The spread of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), causing the COVID-19 outbreak, posed a primary concern of public health worldwide. The most common changes in SARS-CoV-2 are single nucleotide substitutions, also reported insertions and deletions. This work investigates the presence of SARS-CoV-2 ORF7a deletions identified in COVID-19-positive individuals. Sequencing of SARS-CoV-2 complete genomes showed three different ORF7a size deletions (190-nt, 339-nt and 365-nt). Deletions were confirmed through Sanger sequencing. The ORF7a∆190 was detected in a group of five relatives with mild symptoms of COVID-19, and the ORF7a∆339 and ORF7a∆365 in a couple of co-workers. These deletions did not affect subgenomic RNAs (sgRNA) production downstream of ORF7a. Still, fragments associated with sgRNA of genes upstream of ORF7a showed a decrease in size when corresponding to samples with deletions. In silico analysis suggests that the deletions impair protein proper function; however, isolated viruses with partial deletion of ORF7a can replicate in culture cells similarly to wild-type viruses at 24 hpi, but with less infectious particles after 48 hpi. These findings on deleted ORF7a accessory protein gene, contribute to understanding SARS-CoV-2 phenotypes such as replication, immune evasion and evolutionary fitness as well insights into the role of SARS-CoV-2_ORF7a in the mechanism of virus-host interactions.

Follow-up care for premature children: the repercussions of the COVID-19 pandemic.

OBJECTIVE: to analyze elements of the follow-up care provided to premature children amidst the COVID-19 pandemic. METHOD: qualitative study from the perspective of philosophical hermeneutics, interpreting experiences with childcare provided at home. Twelve mothers and 14 children aged two years old were interviewed online via a text messaging application. Data were analyzed by interpreting meanings. RESULTS: weaknesses stood out in the follow-up care provided to children such as gaps of communication, lack of guidance and delayed immunizations, while care intended to meet health demands was interrupted. Vulnerability aspects affecting child development included: social isolation measures that impeded the children from socializing with their peers, increased screen time, the manifestation of demanding behaviors and irritation and the mothers experiencing an overload of responsibilities. The elements that strengthened maternal care included the mothers being attentive to contagion, enjoying greater experience and satisfaction with the maternal role, spending more time with their children, and recognizing respiratory signs and symptoms, especially fever. CONCLUSION: follow-up care provided to children in stressful situations implies implementing practices that support the wellbeing of children and families, decreasing the likelihood of children being exposed to development deficits, and detecting signs and symptoms timely. The use of nursing call centers can break the invisibility of longitudinal needs and promote health education actions at home.

Coping with COVID-19 in an international border region: Health and economy

Objective: to analyze how the social isolation measures and closed borders affected the health and economy in an international border region. Method: descriptive cross-sectional study conducted in the western region of Parana, Brazil, using an electronic form created using Google forms. A sample of 2,510 people was addressed. Descriptive analysis and the Chi-square test were performed, with a level of significance established at 5%. This public opinion survey, addressing unidentified participants, is in accordance with Resolutions 466/2012 and 510/2016. Results: the participants were 41.5 years old on average, most were women and worked in the education sector;41.9% reported that the closing of borders/commercial businesses negatively influenced income;17.7% reported the possibility of losing their jobs;89.0% consider that a larger number of people would be sick if the borders/commercial had not been closed;63.7% believe the health services are not prepared to deal with the pandemic;74.9% realize that the Brazilian Unified Health System may not have sufficient service capacity;63.4% reported anxiety;and 75.6% of commercial workers will experience changes in their income level. Conclusion: the closing of international borders and commercial businesses was related to a perception of physical and mental changes, job loss, and decreased income. (PsycInfo Database Record (c) 2022 APA, all rights reserved)