Define pathogen - Study guides, Class notes & Summaries

Define "immunity" - ️️The state of being resistant to reinfection with a pathogen What happens to a pathogen as it becomes attenuated? - ️️It has weakened virulence Which of the following is the BEST example of herd immunity? - ️️A child infected with measles travels from Germany to the USA. Several babies contract the disease, but the outbreak is largely contained due to vaccinations. Which of the following diseases does NOT currently have an effective vaccine? A) Chic...

ENWC 201 Midterm Textbook Questions With Verified Answers Define lifelong monogamy Individuals pair with a single mate for that breeding season and for all other seasons as long as they are both alive Define serial monogamy It is a specific case of monogamy where individuals pair with only a single mate during a breeding season, but that mate changes during each season. How do desert species minimize water loss? Animals can minimize water loss by reducing water content of fece...

HOSA CPR/First Aid Questions and Answers Already Passed How many breaths and compressions do you perform for each cycle of CPR? 2 breaths and 30 compressions How do you treat a cut / gash on a person's arm? With clean dressing, put gauze pads on the cut. Hold for 1 minute and state that you are holding for 1 minute. If bleeding continues, place more clean gauze pads and hold 1 more minute with more pressure. Bleeding should subside. Wrap arm with some kind of bandage to maintain ...

Select all the statements that are the most applicable to the design criteria of intersections: a) Provide enough sight distance for incoming and outgoing vehicles b) Minimize stop times as it leads to higher noise levels c) provide safe pedestrian crossing d) avoid steep grades and sharp curves that will negatively affect acceleration and deceleration rates - Answer-a) Provide enough sight distance for incoming and outgoing vehicles c) provide safe pedestrian crossing d) avoid steep grad...

WI Pesticide Applicator Test Questions and Answers Graded A+ Define plant disease and what causes disease. Plant disease is any harmful change in the physiology and/or structure of a plant caused by the continuous irritation of a primary causal agent (pathogen). List examples of plant pathogens. 1. Fungi 2. Oomycetes 3. Nematodes 4. Bacteria 5. Viruses 6. Phytoplasmas 7. Viroids How is fungi spread? Wind, rain splash, or insect vectors How is Oomycetes spread? Wind, rain...

How did Jenner demonstrate concept of vaccination? - He developed vaccination for smallpox by inoculating individuals with cowpox (creating immunity for smallpox) How does understanding microorganisms help us? - helps use prevent food spoilage, prevents disease occurrences, and we can better understand how aseptic techniques can be used to prevent contamination and infection Define microorganisms - organisms that are too small to be be seen with the unaided eye How do microorganisms benefi...

AAPD QE Exam Questions With 100% Correct Answers How do plaques from caries-active subjects and caries-free subjects compare? a. Caries-free plaques have significantly higher proportions of Mutans Strep b. In the caries-active plaques, pH levels of 5.0 or lower may persist for several hours after sugar exposure. c. Non-cariogenic plaques per unit of plaque protein are slightly more acidogenic than cariogenic plaques. d. Streptococcus salivarius of only the caries-active plaques readily c...

Epidemiology is defined as? - ANSWER-The STUDY of the DISTRIBUTION and DETERMINANTS of HEALTH-RELATED STATES OR EVENTS in specified POPULATIONS and the application of this knowledge to the CONTROL OF HEALTH PROBLEMS What are the core Epidemiological Functions? - ANSWER-Surveillance Field Investigations Analytic Studies Evaluation Linkages Policy What type of science is Epidemiology? - ANSWER-Quantitative What does measurement focus on in Epidemiology? - ANSWER-Distribution and Dete...

The diaphragm is a system of muscles that allows ....? - ANS Breathing A convex mirror ... light waves, A convex lens ... light waves. - ANS Diverges Converges The state of matter occurring at lower temperatures is the ... state - ANS Solid What is the difference bw physical change and chemical change? - ANS A physical change may alter the form, size or shape of matter; a chemical change alters its molecules. Put these in order to describe how blood flows from the heart to ...

1. What is the single most important way to prevent the spread of infection?- ANS Hand washing 2. What are the six elements in the chain of infection ANS 1) An infectious agent or pathogen; 2) a reservoir or source for pathogen growth; 3) a port of exit from the reservoir; 4) a mode of transmission; 5) a port of entry to a host; 6) a susceptible host. 3. Define "asepsis" ANS absence of disease producing organisms 4. What is the purpose of "aseptic technique" ANS prevent transfer of ...