25
Jun
The article reports that at least in the 2010-11 and 2011-12 influenza seasons pregnant women who were vaccinated against flu may have been at. For each flu season and even when all women and seasons were combined there was no evidence of increased miscarriage risk after influenza vaccination during.
But researchers have found a potential link between the flu vaccine and early-pregnancy miscarriage.
Flu vaccine miscarriage. Of the women who miscarried 17 had received flu vaccine in the 28 days before the miscarriage and had also been immunised the prior flu season. Most miscarriages occurred in the first trimester. The investigators found no association between miscarriage and flu vaccine if a woman had not received a vaccine in the previous year but in women who had consecutively gotten a flu vaccine containing the 2009 H1N1 virus the researchers found an adjusted odds ratio aOR of 77 while women not vaccinated in the previous season had aOR of 13.
While the study authors stated that it cannot establish a causal relationship the association of receiving the flu vaccine during pregnancy and having a miscarriage SAB was significant. What we do know is that pregnant women ARE at a higher risk of contracting illnesses during pregnancy and the flu is one of those illnesses. Vaccine experts are puzzling over a study that appears to link one particular flu vaccine with early miscarriages.
Its far too soon to say. Getting an influenza Vaccine While Pregnant Does NOT Increase the Risk of Miscarriage. One of the largest and strongest studies examining influenza vaccination and risk of miscarriage was conducted in CDCs Vaccine Safety Datalink VSD project.
A similar study using VSD data Irving et al 2013 external icon from the 2005-06 and 2006-07 seasons also found no increased risk of miscarriage among pregnant women who received flu vaccines. One study of the 2010-2012 flu seasons however found that women in early pregnancy who received two consecutive annual flu vaccines had an increased risk of miscarriage in the 28 days. The short answer is that we do not know yet.
But researchers have found a potential link between the flu vaccine and early-pregnancy miscarriage. According to the results of a recent study women who received a particular version of the flu vaccine two years in a row had higher rates of miscarriage than women who did not receive the vaccine. Sun compounds her minimization of a very serious conclusion by then saying something thats simply not true.
The findings suggest an association not a causal link and the research is too weak and preliminary experts said to change the advice which is based on a multitude of previous studies that pregnant women should get a flu vaccine to protect them from influenza a deadly disease that may cause serious birth defects. Flu shot and miscarriage You may have heard of a link between the flu vaccine and miscarriage. A 2017 study on this topic suggested that miscarriage is more common in the 28 days following the flu.
Belongia said while its not clear whether flu shots could increase the risk of miscarriage it is known that contracting the flu during pregnancy can be dangerous for both a woman and her fetus. But he and the CDCs Cohn advised that pregnant women who are concerned should talk with their doctors. Most alarmingly in women who received the H1N1 vaccine in the previous flu season the odds of spontaneous abortion in the 28 days after receiving a flu vaccine were 77 times greater.
For every flu season starting in 2010-2011 there has been an H1N1-type virus included in regular flu shots in the United States. For each flu season and even when all women and seasons were combined there was no evidence of increased miscarriage risk after influenza vaccination during. Flu vaccine causes miscarriages the real evidence says otherwise The Washington Post dropped this provocative headline on its readers yesterday Researchers find a hint of a link between flu vaccine and miscarriage And you know what will happen next every anti-vaccine website will claim that the flu vaccine causes miscarriages.
CDC Study Shows Up to 77 Times the Risk of Miscarriage After Influenza Vaccine. The CDC has just published a seismic study Donahue et al. 2017 Vaccine 355314 linking spontaneous abortions in women to flu vaccines.
The study reviewed data for the 2010-11 and 2011-12 flu. Inactivated influenza vaccine is recommended in any stage of pregnancy but evidence of safety in early pregnancy is limited including for vaccines containing AH1N1pdm2009 pH1N1 antigen. We sought to determine if receipt of vaccine containing pH1N1.
The researchers did not find an association between miscarriage and flu vaccine if a woman had not received a vaccine during the prior year. However in women who had consecutively received a flu vaccine containing the 2009 H1N1 virus the researchers discovered an adjusted odds ratio of 77 while women who were not vaccinated in the previous season had an adjusted odds ratio of 13. The article reports that at least in the 2010-11 and 2011-12 influenza seasons pregnant women who were vaccinated against flu may have been at.
Vaccine experts think the results may reflect the older age and other miscarriage risks for the women and not the flu shots. Health officials say there is no reason to change the government. In 2017 a research study in the US suggested a possible link between the flu vaccine and miscarriage.
This had a lot of media interest which led people to ask if having the flu vaccine in pregnancy is safe for their baby. Its completely understandable to worry about vaccine safety when youre pregnant.