Question

Question 8 0/2 pts Believing that getting the polio vaccine will protect you form polio infections is an example of a perceived [x]. immunity

Answer 1

8.The action of oral polio vaccine (OPV) is two-pronged. OPV produces antibodies in the blood ('humoral' or serum immunity) to all three types of poliovirus, and in the event of infection, this protects the individual against polio paralysis by preventing the spread of poliovirus to the nervous system.

4. C tobacco use

Cigarette-smoking is the major cause of preventable mortality and morbidity in the United States (National Center for Health Statistics [NCHS], 1998a; USDHHS, 2000). Not only does smoking lead to an increased risk of the two leading causes of death in the United States—heart disease and cancer (NCHS, 1998b; USDHHS, 2000)—but smoking during pregnancy has been linked to adverse pregnancy outcomes (DiFranza and Lew, 1995; Hebel et al., 1988; LeClere and Wilson, 1997; Li et al., 1993; Shu et al., 1995; USDHHS, 2000; Ventura et al., 1997; Walsh, 1994). Nonsmoking people are not immune to tobacco's health hazards, inasmuch as exposure to second-hand smoke has serious health consequences for adults and children