simmer(Noun) The state or process of simmering. The kettle was kept on the simmer. simmer(Verb) To cook or undergo heating slowly at or below the boiling point. The soup simmered on the stove. simmer(Verb) To cause to cook or to cause to undergo heating slowly at or below the boiling point. Simmer the soup for five minutes, then serve.
Some diseases caused by viruses are poliomyelitis, influenza, measles caused by rubeola virus, chikenguniya caused by chikanguniya virus, chickenpox caused by varicella zoster â¦ virus, AIDS caused by human immunodeficiency virus, and the common cold.
1 Ebola virus disease (EVD), formerly known as Ebola haemorrhagic fever, is a severe, often fatal illness in humans. 2  The virus is transmitted to people from wild animals and spreads in the human population through human-to-human transmission.3  The average EVD case fatality rate is around 50%.ey facts. 1  Ebola virus disease (EVD), formerly known as Ebola haemorrhagic fever, is a severe, often fatal illness in humans. 2  The virus is transmitted to people from wild animals and spreads in the human population through human-to-human transmission. 3  The average EVD case fatality rate is around 50%.