References
Challenges of SARS-CoV-2 and conflicting PPE guidelines
Abstract
During the coronavirus disease 2019 (COVID-19) pandemic, personal protective equipment (PPE) has become a contentious issue in healthcare settings, no more so than in the prehospital environment. The current severe acute respiratory syndrome 2 virus (SARS-CoV-2) has pathogenic and transmission similarities to previous coronaviruses, severe acute respiratory syndrome (SARS-CoV) and Middle Eastern respiratory syndrome (MERS-CoV). There are differences in global and domestic PPE guidelines concerning SARS-CoV-2.
On 11 February 2020, the International Committee on Taxonomy of Viruses (https://talk.ictvonline.org) named the current novel coronavirus as SARS-CoV-2 (World Health Organization (WHO), 2020a). The name was chosen owing to its genetic similarity to the virus SARS-CoV that was responsible for the SARS outbreak of 2003 (WHO, 2020a). While SARS-CoV-2 has similarities with SARS-CoV, the viruses are different (WHO, 2020a). On the same day, the WHO named COVID-19 as the disease caused by SARS-CoV-2 virus (WHO, 2020a).
At the beginning of the 21st century, two highly pathogenic and transmissible novel coronaviruses emerged: severe acute respiratory syndrome (SARS-CoV) and Middle Eastern respiratory syndrome (MERS-CoV), which probably originated from bats (Cui et al, 2019). Phylogenetic analysis shows that SARS-CoV-2 shares 50% of its genetic sequence identity with MERS-CoV and 79.5% with SARS-CoV (Zhu et al, 2020). Zhu et al (2020) suggest that there are similarities between SARS-CoV-2 and certain betacoronaviruses detected in bats—although a clear role of bats in the zoonotic origin of this novel virus has yet to be established (Zhang and Holmes, 2020).
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