Don't have an Account? Register Now!
1annually
2avoid
3cause
4cemetery
5elderly
6fever
7flu
8frequently
9guarantee
10impact
11infect
12influenza
13mild
14mucous
15occur
16particular
17prevent
18preventive
19prolong
20protect
21severe
22shot
23sneeze
24sore
25symptom
26throat
27victim
28virus
