In two communities of similar size and age structure (a and b) there were outbreaks of viral illness (virus a in community a and virus b in community b), both of which were traced back to a single source. exposure to these viruses in each community confers permanent immunity. in community a, 200 susceptible people were exposed to an index case, 150 people were infected (not including the index case), 75 people became ill, and 40 people died. in community b, pathogenicity was 40%, infectivity was 90% and virulence was 60%.a. which virus had the greatest infectivity? b. which virus was most pathogenic? c. which virus was most virulent?

Which virus had the greatest infectivity

B

?B. Which virus was most pathogenic?

A

C. Which virus was most virulent?

A

Explanation:

yes i have all the correct answers

1. c 6. b. 11. c

2. a 7. d. 12. d

3. c 8. b. 13. c

4. d 9. c. 14. d

5. c 10. d. 15. a

16. d. 21. a

17. d.

18. a. 22-30 you must do on

19. d. your own

20. d.

1: most common garden plants prefer loam — soils with a balance of different-sized mineral particles (approximately 40% sand, 40% silt, and 20% clay) with ample organic matter and pore space. however, some plants grow better in sandy soils, while others are well-adapted to clay soils.

2: available water capacity is the maximum amount of plant available water a soil can provide. it is an indicator of a soil's ability to retain water and make it sufficiently available for plant use. available water capacity is the water held in soil between its field capacity and permanent wilting point.

3: it is the same for all living things (plants and animals). it also includes very tiny organisms that our eyes cannot see. they are known as microorganisms, and include viruses, bacteria and fungi.