What happens if you get the same vaccine twice?
Is there any danger from receiving extra doses of a vaccine.
Most of the time, your risk of serious side effects does not increase if you get extra doses of a vaccine.
Getting extra doses of oral vaccines, such as rotavirus or typhoid, is not known to cause any problems..
Can BCG vaccine be repeated?
There is no proven benefit of repeated BCG vaccination against TB. This also applies to revaccination of BCG-vaccinated individuals who remain negative by subsequent tuberculin testing. In the absence of a scar in children in high-burden countries, BCG vaccination is indicated.
How long does the BCG vaccine last?
The BCG vaccination is thought to protect up to 80% of people against the most severe forms of TB for at least 15 years, perhaps even up to 60 years.
Do you need a BCG booster?
Do I need a booster? Protection has been shown to last for 10 to 15 years (WHO, 1999). Although the protection afforded by BCG vaccine may wane with time, there is no evidence that repeat vaccination offers significant additional protection and repeat BCG vaccination is not recommended.
How many times BCG vaccine is given?
There are also varying ideas about the optimum time to vaccinate babies and some studies suggest that late vaccination confers a high degree of protection. This study was carried out to evaluate tuberculin sensitivity and side effects following 0.05 ml and 0.1 ml of BCG at birth and 0.1 ml of BCG at 4-6 weeks of age.
What should I do if I don’t have a BCG scar?
If there is no scar, one needs to do Mantoux test. If negative, one should give repeat BCG.