Streptokok refers to a type of bacteria known as Streptococcus. These bacteria are spherical in shape and often form chains or pairs. They are commonly found in the human body, particularly in the throat and on the skin. Some strains of Streptococcus can cause infections, such as strep throat, while others are part of the normal flora and do not cause disease. There are several groups of Streptococcus, including Group A and Group B streptococci. Group A Streptococcus is known for causing illnesses like pharyngitis and scarlet fever, while Group B Streptococcus can be a concern for pregnant women and newborns. Proper hygiene and medical treatment can help manage infections caused by these bacteria.