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Published on: November 5, 2021
The "Invisible Enemy" SARS-CoV-2: Viral Spread and Drug Treatment
Alina Tanase1, Aniko Manea2, Alexandra Denisa Scurtu3
1Department of Management, Legislation and Communication in Dentistry, Faculty of Dental Medicine, "Victor Babes" University of Medicine and Pharmacy, Eftimie Murgu Square No. 2, 300041 Timisoara, Romania.
Abstract:
Nowadays, severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection has become the main subject of the scientific medical world and all World Organizations, causing millions of deaths worldwide. In this review, we have highlighted the context of the Coronavirus disease 2019 (COVID-19) pandemic, how the virus spreads, the symptoms and complications that may occur, and, especially, the drug treatment of viral infection, with emphasis on monoclonal antibodies. While well-known strains such as Alpha, Beta, Gamma, and, especially, Delta have shown an accelerated transmission among the population, the new Omicron variant (discovered on 24 November 2021) indicates more significant infectiousness and the poor efficacy of monoclonal antibody therapy due to mutations on the spike protein receptor-binding domain. With these discoveries, the experiments began, the first being in silico and in vitro, but these are not enough, and in vivo experiments are needed to see exactly the cause of neutralization of the action of these drugs. Following the documentation of the latest medical and scientific research, it has been concluded that there are many chemical molecules that have the potential to treat SARS-CoV-2 infection, but more detailed clinical trials are needed for their use in therapy. In addition, it is important to consider the structure of the viral strain in the administration of treatment.
Insights
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection, or COVID-19, has a global impact. This review covers viral spread, symptoms, and treatments, focusing on monoclonal antibodies and challenges posed by new variants like Omicron.
Area of Science:
- Virology
- Infectious Diseases
- Pharmacology
Background:
- The COVID-19 pandemic, caused by SARS-CoV-2, has resulted in millions of deaths globally.
- Understanding viral transmission, symptoms, and complications is crucial for effective public health responses.
Purpose of the Study:
- To review the context of the COVID-19 pandemic, including viral spread, symptoms, and complications.
- To emphasize drug treatment strategies, particularly monoclonal antibodies, for SARS-CoV-2 infection.
- To discuss the impact of viral variants, such as Omicron, on treatment efficacy.
Main Methods:
- Review of existing medical and scientific literature on SARS-CoV-2.
- Analysis of viral characteristics, including mutations in the spike protein receptor-binding domain.
- Evaluation of in silico, in vitro, and the need for in vivo studies for drug neutralization.
Main Results:
- The Omicron variant exhibits increased infectiousness and reduced efficacy of monoclonal antibody therapy due to specific mutations.
- While numerous chemical molecules show potential for treating SARS-CoV-2, further clinical trials are necessary.
- Viral strain structure is a critical factor in determining appropriate treatment administration.
Conclusions:
- Further in vivo studies are essential to understand drug neutralization mechanisms against SARS-CoV-2.
- Extensive clinical trials are required to validate the therapeutic potential of identified chemical molecules.
- Personalized treatment strategies considering viral strain characteristics are vital for managing COVID-19.
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