Originated in Wuhan, China coronavirus is a contagious virus that causes respiratory infections in humans. Although the first case was reported in Wuhan in Hubei province of China there have been many more cases reported across different parts of China and has been reported in 22 other countries such as Japan, USA and UK too.
There are 4 styles of backplate handles but the most common type is the Lever latch door handle on a backplate. This can be found in residential houses, commercial spaces and public buildings. Doors are fitted with this handle along with a mortice latch which is used to keep the door shut. The door handle features a lever handle which is used to operate this latch.
A lever on rose door handle is a type of door handle which is more modern and contemporary than your typical lever on backplate door handle. A lever on rose door handle features a round or square rose and can be used alone if all you require is to use a door latch opening.