Which bacterium has been used as a clot buster? What is its mode of action?

Explanation

The bacterium Streptococcus that produces streptokinase is used as a 'clot buster'. This enzyme has a fibrinolytic action that breaks down the clots formed in the blood vessels of patients who have undergone myocardial infarction. This prevents heart attack in these patients that can otherwise occur because of occulusion by the clots.