Most of us know that the flu vaccine is not 100% effective which means that it is still possible to get flu after receiving the vaccine. However, the exact efficacy varies from year to year and depends on how well the strains in the vaccine match those that actually float around and make people sick.
This year, the vaccine strains and strains circulating are so well coordinated According to new data from the Centers for the Control and Prevention of Diseases (CDC)
every year another flu vaccine is created to to protect against certain influenza strains. Scientists monitor changes in globally circulating influenza strains to find out which strains should be present in the vaccine and use this information to predict which strains will occur most often in the next flu season, the National Institute of Allergy and Infectious (19459004) discusses diseases (NIAD). Then they have a vaccine to protect against three or four of the strains that they believe will be the most dominant this season.
Sometimes the strains in the vaccine do not suit those who end up NIAD saying that they dominate this season and sometimes. Therefore, the efficacy of flu vaccines may vary from year to year. The effectiveness in recent years has been between 60 percent in the 2010-2011 season and 19 percent in the 2014-2015 season, according to CDC data . The last two seasons were about 40 percent effective – not terrible, but not amazing.
This year, influenza A (H1N1) PDM09 viruses have dominated in most regions of the country, while influenza A (H3) viruses have caused the most flu cases in the southeastern US, the CDC says in the last Weekly US Influenza Surveillance Report . This year's vaccine targets H1N1-type, H3N2-type viruses, and a B-strain according to the CDC suggesting that between the strains predicted by experts is a fairly good one There is agreement out there.
"If the circulating strains match the shot, it means we are getting the vaccine to its optimum effectiveness," said infectious disease expert Amesh A. Adalja, a senior fellow at the Johns Hopkins Center for Health Security, SELBST. By exchanging this information hopes Dr. Adalja hopes that people who were not vaccinated against the flu will do so anyway. (For the record: The flu season is peaking in February, but may take until May.)
The flu vaccine should be your first line of defense, but there are other things you can protect both you and Your fellow human beings.
This great news does not mean that you can still not catch the flu when you receive the vaccine (unfortunately you can), but the odds are better than if the vaccine were not Great a match.
In addition, the vaccine is underestimated, because even if you get the flu, your illness tends to be less severe and you have fewer complications (like pneumonia) and "says William Schaffner "Specialist in Infectious Diseases and Professor at Vanderbilt University Medical School, opposite SELF." When people who have been vaccinated complain that they still have the flu, my answer is always: "Well, I'm glad that You're still here to complain about it. "
If someone happens to come down in your house With the flu – whether it's been vaccinated or not – there are some ways to reduce the likelihood that you to occur next. Of course you should get your vaccine first, if you have not already done so. In addition, a good hand hygiene is crucial, says dr. Adalia. In addition, every effort must be made to prevent coughing and sneezing (which is easier said than done if your children have the flu). That's why Dr. Schaffner It would not be a terrible idea to wear a face mask in your house, if you can.
Even if you have an increased risk of complications from the flu – If you are pregnant, have diabetes, or have underlying heart or lung disease, consult your doctor. You may recommend that you take the antiviral drug Tamiflu prophylactically to prevent you from getting the flu or developing serious complications from it. Overall, experts still emphasize that the vaccine is your best protection against the flu virus. "If you have not been vaccinated, please go – do not go – and get yourself vaccinated today," says the doctor. Conductor. "It is not too late."