21.   Scientists who tested a vaccine made from weakened but live HIV on monkeys found it eventually caused illness and offered limited protection from infection.

22.   Several other companies, including VaxGen Inc. of Brisbane, Calif., also are testing HIV vaccines.

23.   Several countries in southern and central Africa are eagerly collaborating with foreign researchers to create or test experimental vaccines.

24.   Scientists are testing edible vaccines in which people would be protected from diseases by eating genetically engineered foods.

25.   Several other personalized vaccines are being tested around the country to treat lung, ovarian, colon, and prostate cancers.

26.   The committee called on the manufacturer, SmithKline Beecham, to continue testing the vaccine, particularly in children.

27.   The first phase of the trial will simply test the vaccine for safety, using healthy volunteers in the United States and South Africa.

28.   The main thrust of the British lab is on disease research and field testing new vaccines.

29.   The United States rejected plans for testing the vaccines in this country in June.

30.   The vaccine was tested in children, because they are usually the most fearful of injections, often leading parents to avoid flu shots altogether.