Five human infections (or resulting diseases) are presented below. For each one, find three matching terms from the associated word bank (see below). Some terms can be used more than once. Each term should be used at least once. 1. Pneumocystis pneumonia in advanced AIDS patient 2. Plague originating in a bite from Yersinia pestis-infected rat flea 3. Undiagnosed Mycobacterium tuberculosis lung infection 4. Infection of meninges caused by Neisseria meningitidis 5. Digestive tract infection with the water pathogen Vibrio cholerae WORD BANK Acute Infection Chronic Infection Asymptomatic infection Secondary infection Zoonotic Infection Airborne Infection Bacteremia Viremia Contact transmission Vehicle transmission Vector transmission Opportunistic pathogen Breaching of the blood-brain barrier Non-living reservoir

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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.