Hello Doctors, I hope you are well. I recently purchased a chocolate milk drink from supermarket to drink. Once I was about to open the lid, I noticed that it did not make the click sound that it makes when it is opened for the first time. This made me conclude that the drink had been previously opened. at that moment, I didn’t think much about it being opened before so I drank the bottle, however afterwards, this caused me to worry about the possibility that someone with ill intentions had opened it and infected it with something such as HIV, I want to know :

Welcome to our forum. Thanks for your confidence in our service. ---

Dear Dr. Hook, thank you for your answer. I greatly appreciate it. Could you also please elaborate on the following two information that I got from some reputable sources online?

The gastrointestinal tract of newborn infants is different from the G.I. track of children older than a few months and of adults. At the time of birth proteins and other substances, including viruses can be enter the body through ingestion. It is for this reason that HIV infection can be transmitted to newborns by breastmilk. On the other hand, after just a few months and certainly in older children and adults, viruses, proteins, and other materials no longer can be into the body through ingestion.  Chewing or having dental or gum disease, as well as oral scrapes and cuts do not change this fact. ---

Thank you doctor, so as a conclusion, there is no need to for any testing of HIV or any other disease? I appreciate if you could confirm this and we can close this thread. Thank you

Correct. As I said in my original reply, there is no medical or scientific reason for testing of any sort related to the event you described. Nor is there any reason for you to abstain from unprotected sexual contact with your regular partner.---