Bcg vaccine how long to take effect




















It's given on the NHS only when a child or adult is thought to have an increased risk of coming into contact with TB. If the BCG vaccine is recommended for your baby, it will usually be offered at about 28 days old. This may be offered at a hospital, a local healthcare centre or, occasionally, at your GP surgery.

BCG vaccination may also be recommended for older children who have an increased risk of developing TB, such as:. BCG vaccination is rarely given to anyone over the age of 16 because there is little evidence it works very well in adults.

But it's given to adults aged 16 to 35 who are at risk of TB through their work, such as some healthcare workers, veterinary staff and abattoir workers. If you're offered BCG vaccination as an adult, it will usually be arranged through your local occupational health department. Find out more about who should have the BCG vaccine. Because the bacteria in the vaccine is weak, it triggers the immune system to protect against the infection but does not give you TB.

It provides consistent protection against the most severe forms of TB, such as TB meningitis in children. For children under the age of five, the TB skin test is preferred over TB blood tests. Learn about Testing and Diagnosis. Related Links.

To receive email updates about this page, enter your email address: Email Address. What's this? Links with this icon indicate that you are leaving the CDC website. Linking to a non-federal website does not constitute an endorsement by CDC or any of its employees of the sponsors or the information and products presented on the website.

You will be subject to the destination website's privacy policy when you follow the link. After 6 months you will most likely have little to no scar. BCG vaccine contains a live form of tuberculosis bacteria, which can "shed" from your injection site. This means that for a short time after you receive the vaccine, your vaccination sore will be contagious and could spread the bacteria to anything or anyone who touches it. Keep your vaccination sore loosely covered with clothing or a light gauze dressing for at least 24 hours.

Tell your doctor if you have any unexpected skin changes or severe irritation, lesions, or oozing where the needle sticks were placed. These reactions could occur up to 5 months after you received BCG vaccine. This vaccine is usually given as a single dose. You may need a repeat vaccine if your TB skin test is still negative 2 to 3 months after you received your first BCG vaccine.

Get emergency medical help if you have signs of an allergic reaction: hives; difficult breathing; swelling of your face, lips, tongue, or throat. Some side effects may occur up to 5 months after you receive BCG vaccine. These side effects may also last for several weeks. This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects.

Before receiving this vaccine, tell the doctor about all other vaccines you have received in the past 30 days. This list is not complete. Other drugs may affect BCG vaccine, including prescription and over-the-counter medicines, vitamins, and herbal products. Not all possible drug interactions are listed here. Your doctor or pharmacist can provide more information about this vaccine.

Additional information is available from your local health department or the Centers for Disease Control and Prevention. Remember, keep this and all other medicines out of the reach of children, never share your medicines with others, and use this medication only for the indication prescribed.

Every effort has been made to ensure that the information provided by Cerner Multum, Inc. Drug information contained herein may be time sensitive. Multum information has been compiled for use by healthcare practitioners and consumers in the United States and therefore Multum does not warrant that uses outside of the United States are appropriate, unless specifically indicated otherwise.



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