| Term 
 | Definition 
 
        | Microorganisms that cause disease |  | 
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        | Term 
 | Definition 
 
        | the route that a pathogen follows as it travels from an infected host to a new host |  | 
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        | Term 
 | Definition 
 
        | agents that cause a host to contract a disease |  | 
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 | Definition 
 
        | the host can support the life functions of the agent |  | 
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        | Term 
 | Definition 
 
        | someone whose immune system isn't able to fight an infection |  | 
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        | Term 
 | Definition 
 
        | someone whose immune system used to be effective but has become weak due to a long-term illness such as cancer or HIV |  | 
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        | Term 
 | Definition 
 
        | a tiny, yet powerful disease-causing agent |  | 
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        | Term 
 | Definition 
 
        | they can stay in the body without causing any symptoms |  | 
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        | Term 
 | Definition 
 
        | wraps around the virus and defends the virus against attacks from the host's immune system |  | 
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        | Term 
 | Definition 
 
        | one-celled microorganisms that can cause disease |  | 
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        | Term 
 | Definition 
 
        | a type of bacteria that causes Lyme disease, typhus and Rocky Mountain spotted fever |  | 
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        | Term 
 | Definition 
 
        | to use therapeutic agents, (drugs) to control the infections caused by pathongenic microorganisms |  | 
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        | Term 
 | Definition 
 
        | made from natural substances |  | 
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        | Term 
 | Definition 
 
        | made from synthetic substances |  | 
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        | Term 
 
        | pharmacological properties |  | Definition 
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        | Term 
 | Definition 
 
        | how effective an antimicrobial agent is against known causative agents |  | 
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        | Term 
 | Definition 
 
        | The doctor prescribes an anti-infective based on evidence collected at the infection site although the actual cause of the infection isn't known |  | 
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        | Term 
 | Definition 
 
        | Begins after the lab has identified the causative agent. The doctor will know if the infection is caused by a bacteria, a virus or some other pathogen. |  | 
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        | Term 
 | Definition 
 
        | Is preventive treatment. The physician will give antibiotics to high-risk patients with weakened immune systems even if they don't have a bacterial infection at the time. |  | 
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        | Term 
 | Definition 
 
        | symptom-free, and without fever, for at least 72 hours |  | 
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        | Term 
 | Definition 
 
        | the pathogens develop a resistance to the drugs that are being used to fight them |  | 
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        | Term 
 | Definition 
 
        | how many types of pathogens it can kill |  | 
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        | Term 
 
        | broad-spectrum antibiotic |  | Definition 
 
        | works on a wide range of pathogens |  | 
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        | Term 
 
        | narrow-spectrum antibiotic |  | Definition 
 
        | works on only a few types of microorganisms |  | 
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        | Term 
 | Definition 
 
        | class of antibacterials used to treat serious infections such as tuberculosis and meningitis. Very toxic |  | 
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        | Term 
 | Definition 
 
        | the way a drug works in the body |  | 
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 | Definition 
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        | Term 
 | Definition 
 
        | ear damage that can include hearing loss |  | 
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 | Definition 
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        | Term 
 | Definition 
 
        | Brand name: None -for intramuscular use
 |  | 
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        | Term 
 | Definition 
 
        | Brand name: Amikin -for IV or IM use
 |  | 
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        | Term 
 | Definition 
 
        | Brand name: Nebcin -for IV use
 |  | 
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        | Term 
 
        | Semisynthetic cephalosporins |  | Definition 
 
        | also known as B-lactam antibiotics, are similar to penicillins. |  | 
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        | Term 
 | Definition 
 
        | treat most gram-positive organisms and some gram-negative ones |  | 
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        | Term 
 | Definition 
 
        | treat the same as 1st gen. but treat Haemophilus influenzae and several Proteus strains as well |  | 
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        | Term 
 | Definition 
 
        | treat a greater number of gram-postive organisms than the first and second but fewer gram-negative |  | 
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        | Term 
 | Definition 
 
        | work the best against gram-positive organisms but offer very little protection against gram-negative ones |  | 
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        | Term 
 | Definition 
 
        | Brand: Keflex -1st gen.
 -Oral
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        | Term 
 | Definition 
 
        | Brand: Mefoxin -2nd gen.
 -IV
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        | Term 
 | Definition 
 
        | Brand: Claforan -3rd gen.
 -IV
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        | Term 
 | Definition 
 
        | Brand: Cefzil -3rd gen.
 -Oral
 |  | 
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        | Term 
 | Definition 
 
        | Brand: Maxipime -4th gen.
 -IV, IM
 |  | 
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        | Term 
 | Definition 
 
        | drugs that stop bacterial growth |  | 
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        | Term 
 | Definition 
 
        | Brand: Biaxin -macrolide
 -oral
 |  | 
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        | Term 
 | Definition 
 
        | Brand: Zithromax -macrolide
 -oral
 |  | 
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        | Term 
 | Definition 
 
        | Brand: Eryc -macrolide
 -oral
 |  | 
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        | Term 
 | Definition 
 
        | Brand: Dynabac -macrolide
 -oral
 |  | 
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        | Term 
 | Definition 
 
        | Brand: Tao -macrolide
 -oral
 |  | 
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        | Term 
 | Definition 
 
        | often used as an alternative anti-infective drug for patients who are allergic to penicillin |  | 
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        | Term 
 | Definition 
 
        | made from the fungus Penicillium and can be either natural or synthetic |  | 
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        | Term 
 | Definition 
 
        | a life-threatening side effect that includes symptoms such as nausea, vomiting, and abdominal pain |  | 
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        | Term 
 | Definition 
 
        | a serious allergic reaction that can turn fatal in minutes |  | 
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        | Term 
 | Definition 
 
        | G: Penicillin G B:Pen, Pfizerpen 
 G:Penicillin V B:Beepen, Ledercillin
 |  | 
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