Hand sanitizer dispenser / Hakimi Roslan ... [et al.]

Retrospective investigations by Chinese authorities have identified human cases with onset of symptoms in early December 2019. While some of the earliest known cases had a link to a wholesale food market in Wuhan. Coronaviruses are a type of virus. There are many different kinds, and some cause disease. A newly identified coronavirus, SARS-CoV-2, has caused a worldwide pandemic of respiratory illness, called COVID-19. These pandemic cases had leads to 1,000,000 deaths reported by the World Health Organization (WHO) and always have new cases increase day by day. As of now, researchers know that the new coronavirus is spread through droplets released into the air when an infected person coughs or sneezes. The droplets generally do not travel more than a few feet, and they fall to the ground (or onto surfaces) in a few seconds this is why physical distancing is effective in preventing the spread.