AP - U.S. scientists hope to have a key ingredient for a swine flu vaccine ready in early May, but are finding that the novel virus grows slowly in eggs — the chief way flu vaccines are made.

AP - The number of confirmed swine flu cases in the United States has jumped to 64, federal officials said Tuesday, and states reported at least four more.

AP - Cuba suspended flights to and from Mexico on Tuesday, becoming the first country to impose a travel ban, as the fast-moving swine flu strain extended its reach overseas and in the United States.

AFP - Indian drug manufacturer Cipla Tuesday said it could supply 1.5 million doses of a copy of the Tamiflu antiviral medication to fight the international swine flu outbreak.

AP - A drug already sold for other prostate problems significantly cut the chances of prostate cancer being found in men with an increased risk of the disease, doctors reported Monday. In a large international study, dutasteride, sold as Avodart, lowered the chances of a prostate cancer diagnosis by 23 percent after four years of use.

AP - A never-before-seen strain of swine flu has turned killer in Mexico and is causing milder illness in the United States and elsewhere. While authorities say it's not time to panic, they are taking steps to stem the spread and also urging people to pay close attention to the latest health warnings and take their own precautions.

AP - World health officials, racing to extinguish a new flu strain that is jumping borders, raised a global alert to an unprecedented level as the outbreak claimed more lives in Mexico. The U.S. prepared for the worst even as President Barack Obama tried to reassure Americans.

AP - Twenty-eight students at a private New York City high school have confirmed cases of swine flu and 17 more probably have it, Mayor Michael Bloomberg said Monday. City officials sought to distinguish the strain of flu in New York as far less serious than the outbreak that has killed more than 100 people in Mexico.