Chapter 19

8. propels particles out
9. Since the mid-1980s it has reemerged as a serious threat, 1.7 billion currently infected worldwide.
10. more drastic influenza
12. Defined as being resistant to multiple drug treatments • common in people who have been previously treated for tuberculosis
14. less drastic influenza
15. Community-Acquired Viral Pneumonia
16. There is a typical increase of influenza during the winter months, spread by aerosols and droplets entering the respiratory system

1. spikes used to release virus from cell in influenza
2. bacterial pharyngitis
3. Viral infections of the upper respiratory tract lead to inflammation, buildup of fluid in the middle ear, and bacterial multiplication in the fluid
4. aids in attachment and penetration of host cells for influenza
5. a trap for invading microbes
6. can be caused by bacteria or viruses, symptoms: pain, inflammation of the throat, reddened and/or swollen mucus membranes
7. Defined as MDR-TB strains with resistance to two additional drugs
11. must be taken early in infection, prevents assembled virions from leaving the host cell and infecting other cells
13. hair traps particles