<span>This statement is true. Protozoan infections are highly varaible, due to which doctors must prescribe specific medications and cannot use medicines that are able to treat a variety of types of organisms, as they are able to do in bacterial infections using wide-spectrum antibiotics. This leads to the mechanism of each anti-protozoal agent being different from the other, due to the specificity of the organism it must target.</span>
<span>The statement is true. Protozoan contaminations are parasitic maladies brought on by living beings in the past characterized in the Kingdom Protozoa. They incorporate life forms characterized in Amoebozoa, Chromalveolata and Excavata. I hope it helps.</span>