Corona viruses are a group of RNA viruses in the Coronaviridae family that are divided in four genera: alpha, beta, gamma and delta that cause disease varying from mild to severe in human and animals. The endemic human corona virus is alpha corona viruses 229E and NL63 and beta corona viruses OC43 and HKU1 that can cause influenza-like illness or pneumonia in humans. But, the two zoonotic corona viruses have emerged causing severe disease in humans: Severe acute respiratory syndrome corona virus (SARS-CoV) in 2002-2003 and Middle East respiratory syndrome coronavirus CoV-2 is a novel corona virus that was identified in late 2019 as the causative agent of COVID-19. On March 11, 2020, the World Health Organization (WHO) declared the world-wide outbreak of COVID-19 a pandemic. It is spread from person to person via respiratory droplet nuclei. Its incubation time is 3-12 days with a median duration of viral shedding of 20 days. This virus is Sensitive to ultraviolet and heat. 75% ethanol, chlorine-containing disinfectant, peracetic acid, and chloroform can effectively inactivate the virus. COVID-19 has spread to the world rapidly (A threat of the word). The disease doesn’t have any treatment and vaccine yet. For Prevention and Control of COVID-19 By practicing Respiratory hygiene, especially by ill persons. Respiratory hygiene means to covering the mouth and nose during coughing or sneezing using medical masks, cloth masks, tissues or a flexed elbow, followed by hand hygiene.
Published Date: 2022-08-17; Received Date: 2022-07-15