Hello and good afternoon. Thank you for your inquiries.

For your information, the accidental contact of needles between you and your father might be a risk for the spread of blood-borne diseases such as HIV, Hepatitis B/C, Syfilis and Malaria. If your father has never acquired any of the known blood-borne infections, there is no possibility that you will acquire the infection as well. Other side effects includes allergic reactions and bacterial infections contaminated at the needle, but it is not a major concern in your case.

Boost your immune system with a balanced diet and good nutrition.

We hope that this answers your question.
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