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Updated: Oct 16, 2025

Infection of Primary Nasal Epithelial Cells Grown at an Air-Liquid Interface to Characterize Human Coronavirus-Host Interactions
Published on: September 22, 2023
[Human coronaroviruses]
1Laboratoire de virologie, CHU Caen, avenue Georges Clémenceau, 14033 Caen Cedex.
Human coronaviruses, including common strains and SARS-CoV, cause seasonal outbreaks and emerging diseases. Their genetic flexibility aids evolution, but specific therapies remain elusive, with RT-PCR being the primary detection method.
Area of Science:
- Virology
- Molecular Biology
Context:
- Coronaviruses infect numerous mammal and bird species.
- Five human coronaviruses (HCoVs) include HCoVs 229E, OC43, NL63, HKU1, and SARS-CoV.
- Coronaviruses possess a single-stranded RNA genome (~30 kb) prone to mutation and recombination.
Purpose:
- To review the characteristics, evolution, and epidemiology of human coronaviruses.
- To highlight the challenges in coronavirus detection and treatment.
Summary:
- Coronaviruses exhibit genomic flexibility, persistent infection capabilities, and high mutation rates, facilitating their evolution.
- Human coronaviruses present distinct epidemiological patterns: endemic seasonal circulation (HCoVs 229E, OC43, NL63) versus emerging epidemics (SARS-CoV).
- Coronaviruses are implicated in enteric and neurological diseases, with RT-PCR as the main diagnostic tool.
Impact:
- SARS-CoV emerged as the first new infectious disease of the millennium, causing a significant global outbreak.
- Despite ongoing research, no specific antiviral therapies or vaccines are currently established for human coronaviruses.
- Understanding coronavirus evolution and epidemiology is crucial for public health preparedness and response.
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