Correct: West Nile virus (WNV; family Flaviviridae, genus Flavivirus) is transmitted to humans [here the virus is being transmitted, not the species name; so West Nile virus is roman type and may be abbreviated].or human coronavirus, use the abbreviation hCoV. Be aware that there is a genus/species named Human coronavirus, which should be abbreviated as H. coronavirus, not hCoV. For numbered echoviruses (e.g., echovirus 13), use the following format: E13 (do not use EV). For hepatitis E virus, use the acryonym HEV.
Muscle twitching is caused by minor muscle contractions in the area, or uncontrollable twitching of a muscle group that is served by a single motor nerve fiber. Muscle twitches are minor and often go unnoticed. Some are common and normal. Others are signs of a nervous system disorder.
In Children. In children, some of the most common causes of involuntary movements are hypoxia, or insufficient oxygen at the time of birth, kernicterus, which is caused by an excess pigment produced by the liver called bilirubin, or cerebral palsy, which is a neurological disorder that affects the bodyâs movement and muscle function.