Astudy shows that an influenza vaccine is 71.4% effective in preventing a particular type of influenza. if 15,422 people receive the vaccine, how many would not be protected and would be likely to get infulenza?
Which of these is most likely to prevent pregnancy? a. tracking of female body temperature to identify ovulation times b. proper condom use c. male withdrawal before ejaculation d. proper spermicide use
When planning a menu for children, what are the best food items to consider? a. white bread and only white flour products b. canned and processed foods c. whole-grain bread and fresh fruit and vegetables d. frozen fruits and vegetables