Flu vaccine given to women during pregnancy keeps infants out of the hospitalNovember 03, 2009Infants born to women who received influenza vaccine during pregnancy were hospitalized at a lower rate than infants born to unvaccinated mothers, according to preliminary results of an ongoing study by researchers at Yale School of Medicine. The team presented the study October 29 at the 47th annual meeting of the Infectious Diseases Society of America in Philadelphia. Influenza is a major cause of serious respiratory disease in pregnant women and of hospitalization in infants. Although the flu vaccine is recommended for all pregnant women and children, no vaccine is approved for infants less than six months of age. Preventive strategies for this age group include general infection control and vaccination of those coming in close contact with them. Few studies have examined the effectiveness of the flu vaccine during pregnancy. Led by Marietta Vázquez, M.D., assistant professor of pediatrics at Yale School of Medicine, this new study is a case-control trial of the effectiveness of vaccinating pregnant women to prevent hospitalization of their infants. During nine flu seasons from 2000 to 2009, Vázquez and colleagues identified and tracked over 350 mothers and infants from 0 to 12 months of age who were hospitalized at Yale-New Haven Hospital. They compared 157 infants hospitalized due to influenza to 230 influenza-negative infants matched by age and date of hospitalization. The team interviewed parents to determine risk factors for influenza and reviewed medical records of both infants and their mothers to determine rates of vaccination with the influenza vaccine. "We found that vaccinating mothers during pregnancy was 80 percent effective in preventing hospitalization due to influenza in their infants during the first year of life and 89 percent effective in preventing hospitalization in infants under six months of age," said Vázquez. "These results not only have a positive impact on the health of susceptible infants, but also may be very cost effective, as it involves one vaccine providing protection to two individuals," Vázquez added. "The findings may also help establish public health policy, increase awareness of the importance of influenza vaccination during pregnancy, and even help to overcome barriers to vaccination." Yale University |
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| Related Flu Vaccine Current Events and Flu Vaccine News Articles People with less education could be more susceptible to the flu People who did not earn a high school diploma could be more likely to get H1N1 and the vaccine might be less effective in them compared to those who earned a diploma, new research shows. Poll: Many parents, high-priority adults who tried to get H1N1 vaccine unable to get it A new national poll from Harvard School of Public Health (HSPH) researchers found that a majority of adults who tried to get the H1N1 vaccine for themselves or their children have been unable to do so. Initial Results Show Pregnant Women Mount Strong Immune Response To One Dose of 2009 H1N1 Flu Vaccine Healthy pregnant women mount a robust immune response following just one dose of 2009 H1N1 influenza vaccine, according to initial results from an ongoing clinical trial sponsored by the National Institute of Allergy and Infectious Diseases (NIAID) of the National Institutes of Health. Pandemic flu vaccine campaigns may be undermined by coincidental medical events The effectiveness of pandemic flu vaccination campaigns - like that now underway for H1N1 - could be undermined by the public incorrectly associating coincidental and unrelated health events with the vaccines. Lessons from flu seasons past Pregnant women who catch the flu are at serious risk for flu-related complications, including death, and that risk far outweighs the risk of possible side effects from injectable vaccines containing killed virus, according to an extensive review of published research and data from previous flu seasons. Despite Risk, Older African Americans More Likely Than Others To Avoid Flu Vaccine A study about why African American seniors do or do not get influenza vaccinations finds that many of them do not have accurate and complete information about the flu itself, the safety and efficacy of the inoculations, and the ease and necessity of getting the shots. Earlier flu viruses provided some immunity to current H1N1 influenza, study shows University of California, Davis, researchers studying the 2009 H1N1 influenza virus, formerly referred to as "swine flu," have identified a group of immunologically important sites on the virus that are also present in seasonal flu viruses that have been circulating for years. Survey finds just 40 percent of adults 'absolutely certain' they will get H1N1 vaccine In a new survey, Harvard School of Public Health (HSPH) researchers found that just 40% of adults are "absolutely certain" they will get the H1N1 vaccine for themselves, and 51% of parents are "absolutely certain" that they will get the vaccine for their children. Surgical masks and N95 respirators provide similar protection against influenza A McMaster University study has found that surgical masks appear to be as good as N95 respirators in protecting health-care workers against influenza. Most would refuse emergency use H1N1 vaccine or additive A majority of Americans would not take an H1N1 flu vaccine or drug additive authorized for emergency use by the Food and Drug Administration, according to a University of Pittsburgh Graduate School of Public Health and University of Georgia study. More Flu Vaccine Current Events and Flu Vaccine News Articles |
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