This is normal and nothing to worry about. Serious side effects from the BCG vaccine, such as a severe allergic reaction anaphylaxis , are very rare. The Yellow Card Scheme allows you to report suspected side effects from a vaccine. Find out more about BCG vaccination side effects.
Page last reviewed: 26 April Next review due: 26 April BCG vaccine for tuberculosis TB overview. The BCG vaccine should only be given once in a lifetime. BCG for babies BCG vaccination is recommended for babies up to 1 year old who: are born in areas of the UK where TB rates are high have a parent or grandparent who was born in a country where there's a high rate of TB live with, or are close contacts of, someone with infectious TB If the BCG vaccine is recommended for your baby, it will usually be offered at about 28 days old.
BCG for children aged 16 and under BCG vaccination may also be recommended for older children who have an increased risk of developing TB, such as: children who have a parent or grandparent who was born in a country where there's a high rate of TB children who have recently arrived from countries with high levels of TB, including those in Africa, the Indian subcontinent, parts of southeast Asia, parts of South and Central America, and parts of the Middle East children who will be living with local people for 3 months or longer in countries with high rates of TB children who live with, or are close contacts of, someone with infectious TB BCG for adults BCG vaccination is rarely given to anyone over the age of 16 because there is little evidence it works very well in adults.
The vaccination usually leaves a small scar. However, this vaccine is not recommended for pregnant women. Before you receive BCG vaccine, your doctor will perform a skin test to make sure you do not have tuberculosis. BCG vaccine is not given with a needle and syringe, as most other vaccines are. Instead, the BCG vaccine is a liquid placed directly onto the skin of your upper arm. Then a multi-pronged needle device is used to prick the skin through the liquid to deliver the vaccine into the shallow layers of skin.
These needle sticks are not deep, but they will cause some soreness and minor bleeding. You may have flu-like symptoms for up to 2 days after you receive BCG vaccine.
Call your doctor at once if you have a fever of degrees F or higher. Within 10 to 14 days after receiving this vaccine, you should see small red bumps on your skin where the vaccine and needle device were placed. This red area will gradually grow larger after 4 to 6 weeks, and then scale and fade.
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. For children under the age of five, the TB skin test is preferred over TB blood tests. Learn about Testing and Diagnosis. Related Links.
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