April 17, 2012 Health and Human Services Secretary Kathleen Sebelius is expected to show her support for two big vaccination initiatives in Haiti, including one against cholera. Previously, U.S. health officials were cool to the cholera pilot project .
April 13, 2012 Cholera was introduced into Haiti 18 months ago. So far, more than a half-million people have gotten sick and 7,000 have died. Public health authorities say the disease will linger for a long time because Haiti has the worst sanitation in the Western Hemisphere.
April 12, 2012 Today, 50,000 people living in the slums of Port-au-Prince will start to get immunized against the disease. This weekend, another 50,000 villagers in the low rice-growing areas of the Artibonite River valley will get their first doses of an oral cholera vaccine. All told, though, the immunization will cover only 1 percent of the Haitian population.
March 27, 2012 Cholera has killed nearly 7,000 Haitians since October 2010 and sickened well over a half-million. A program to vaccinate 100,000 Haitians was supposed to have kicked off by now — before the spring rains once again help spread the disease. But the campaign is bogged down in red tape.
March 13, 2012 There's enough vaccine to treat the 100,000 Haitians who have signed up for it. But a government mix-up and a local radio station's incendiary report put the project on hold just a few weeks before the earthquake-ravaged nation's rainy season begins.
February 22, 2012 An expert panel is expanding an earlier recommendation that seniors be vaccinated if they have contact with very young infants. Now just about all seniors will be candidates for vaccination. Adults and teens have been on the recommended list for years already.
February 7, 2012 Unlike an older vaccine, the newer rotavirus vaccine doesn't appear to increase the risk of a dangerous intestinal side effect, according to a large new study. The vaccine has been responsible for a substantial reduction in deaths from rotavirus worldwide.
January 24, 2012 Researchers found that children whose blood contained high levels of chemicals used in nonstick coatings and stain-resistant fabrics were less responsive to vaccination. The finding suggests, but doesn't prove, that these chemicals may make some children more vulnerable to infectious diseases.
January 6, 2012 The vaccine protected 80 percent of monkeys from infection with SIV, the simian version of HIV. By comparison, an experimental HIV vaccine was 31 percent effective in protecting people against infection in a large-scale study unveiled in 2009.
December 8, 2011 A test of a nasal vaccine against norovirus suggests it may be possible to immunize people against the virus, a common cause of foodborne illness.
November 28, 2011 The majority of pediatricians are okay with delaying childhood vaccines if parents ask to do that, according to a new survey. But they still overwhelmingly support vaccines and the current schedule, which requires 25 vaccines before age 2.
November 17, 2011 About 88 percent of cervical cancer deaths occur in developing countries. The deaths can be prevented by an HPV vaccine, which will be available to some women for the first time in 2012.
November 7, 2011 As an alternative to vaccinations, a Tennessee woman offered lollipops smeared with chickenpox virus. Health officials said that the chickenpox vaccine is much safer, and that mailing pathogens is both illegal and dangerous.
October 25, 2011 The flu vaccine has proven itself for most people, but researchers say it needs an overhaul to further reduce infection and death rates. Many doctors would like to see a universal vaccine that protects against all strains of flu.