You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is How much time does it take for the finding shown below, after BCG vaccination? and explain in detail?
- BCG vaccine is administered at inseion of deltoid on left shoulder - to allow easy identification of its scar Changes after BCG vaccination: - Intradermal injection using 26G needle raises 5-7mm wheal - It occurs by following sequence of events Bacilli multiply - form a papule - by 1 week which enlarges to 4-8 mm Ulcerates - by 5-6 weeks Heals by scarring - by 6-12 weeks Route of administration : intradermal