Does taking liver hepatitis vaccine while fasting in Ramadan break the fast?

Taking intravenous and intramuscular injections does not invalidate the fast, whether taken for medicinal or nutritional purposes. This is because fasting is nullified by anything that enters the body cavity through a visible external natural body orifice. Since the injected fluid does not reach the stomach and does not enter the body through a visible external natural body orifice, but rather through the pores, it does not nullify fasting.