NURSING ANM AND GNM

Detailed explanation-1: -Full-genome sequencing and phylogenic analysis indicated that the coronavirus that causes COVID-19 is a betacoronavirus in the same subgenus as the severe acute respiratory syndrome (SARS) virus (as well as several bat coronaviruses), but in a different clade.

Detailed explanation-2: -Common symptoms reported across the studies included fever, cough, shortness of breath, and fatigue/weakness. Only 15 studies reported some information about the pre-existing conditions of the patients; most of whom had metabolic and cardiovascular underlying conditions.

Detailed explanation-3: -The epidemiological triad (Figure) helps us understand the spread of diseases through 3components: agent, environment, and host. In the context of COVID-19, the agentis the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), including the pathogenicity and virulence of various strains.