Journal
VIRUSES-BASEL
Volume 14, Issue 4, Pages -Publisher
MDPI
DOI: 10.3390/v14040809
Keywords
coronavirus; environment; public health; diagnosis; diagnostic techniques and procedures; genotyping; SARS-CoV-2; omicron; vaccination
Categories
Funding
- Federal University of Parana (Curitiba, Parana, Brazil)
- FINEP-Funder of Studies and Projects
- Ministry of Science, Technology and Innovation-Brazil-Institutional Network Project: Laboratories for Diagnostic tests for COVID-19 [0494/20]
Ask authors/readers for more resources
Screening efforts and genomic surveillance are crucial for evaluating the progress of the COVID-19 pandemic. A study in Curitiba, Brazil analyzed COVID-19 cases, conducted diagnosis and genotyping, and found that the Omicron variant quickly became dominant. Vaccination was associated with reduced mortality rates.
Screening efforts and genomic surveillance are essential tools to evaluate the course of the COVID-19 pandemic and assist the public healthcare system in dealing with an increasing number of infections. For the analysis of COVID-19 cases scenarios in Curitiba, Parana, Brazil, we performed a diagnosis of positive cases, coupled with genotyping, for symptomatic and asymptomatic members of the Federal University of Parana. We achieved over 1000 samples using RT-qPCR for diagnosis. The posterior genotyping allowed us to observe differences in the spread of strains in Curitiba, Brazil. The Delta variant was not associated with an infection wave, whereas the rapid Omicron variant spread became dominant in less than one month. We also evaluated the general vaccination coverage in the state, observing a striking reduction in lethality correlated to the vaccinated fraction of the population; although lower lethality rates were not much affected by the Omicron variant wave, the same effect was not translated in the number of infections. In summary, our results provide a general overview of the pandemic's course in Parana State and how there was reduction in lethality after a combination of multiple infection waves and a large-scale vaccination program.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available