A bacterial toxin was found to cause hemolysis, pus, and mucous, and upon structural elucidation was found to be a protein shaped like a pore: a. Pus and mucus are a i. Sign ii. Symptom iii. Neither b. This toxin is an: i. Exotoxin C. ii. Endotoxin f. This toxin is an i. AB Toxin ii. Membrane-damaging toxin iii. Superantigen iv. None d. True or False: A toxoid vaccine cannot be produce for this toxin e. This toxin is an i. Neurotoxin ii. Enterotoxin iii. Cytotoxin This toxin is an i. Heat-labile ii. Heat-stable iii. Neither g. This toxin is produced in i. Gram-negative only ii. Gram-positive only i11. Either Gram-positive or gram-negative

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Viral Infections

Viruses are abundantly found, minute entities that have genetic material enclosed within a protein coat. The proteinaceous material enclosing the genetic material of the virus is called a capsid. The genetic material could be either DNA (deoxyribonucleic acid) or RNA (ribonucleic acid). A virus is too minute to be looked at with naked eyes and therefore visualized with the help of a microscope. They are acellular entities that require a host for processes, such as replication, transcription, translation and multiplication. Plants, animals, and bacteria act as host wherein the virus reproduce. Viruses cannot multiply outside the host's body and thus are considered nonliving outside the host body.