Using what you know about roots, prefixes, and suffixes, the word composition means the quality of pulling forward characterized by joining aga...
Introduction. Scarlet fever is a bacterial illness that mainly affects children. It causes a distinctive pink-red rash. The illness is caused by Streptococcus pyogenes bacteria, also known as group A streptococcus, which are found on the skin and in the throat.s it's so contagious, scarlet fever is likely to affect someone in close contact with a person with a sore throat or skin infection caused by streptococcus bacteria. Outbreaks often occur in nurseries and schools where children are in close contact with one another.
In 1926 it was shown that scarlet fever is caused by a bacterium that is infected by a certain bacteriophage. While plant viruses and bacteriophages can be grown comparatively easily, animal viruses normally require a living host animal, which complicates their study immensely.