Covid-19:
COrona VIrus DIsease - 2019 (the year the disease
was identified).
Coronavirus:
A family of viruses that cause illness ranging from common cold to more severe diseases.
SARS-CoV-2: Severe Acute Respiratory Syndrome Coronavirus 2 (the virus that causes Covid-19).
Corona: latin word that means "crown" or "halo", referring to the shape of the virus particle when viewed under a microscope.