I know this is a crazy hypothetical, but what if they took the kid to the beach that had sharks? Would the sharks know of the HIV status or care?
But that's how my sick and twisted mind works...
I doubt it, because aside from the fact the kid is ~2 years old, the buffer capacity and osmolarity as well as osmolality of sea water would not allow the virus to live that long in that kind of environment...
If the HIV+ person had weeping bloodied wounds, the sharks would taste it, but probably would not eat it because it is thought they can detect these kinds of things. Moreover, sharks have a very different immune system than mammals, they do not make antibodies like mammals do.
And shark behavior is fundamentally a different kind of social system from what is identifiable. Why is this important? Because sharks have evolved and lived on Earth for millions of years. It makes it relevant in understanding how these animals live for so long can give us humans an inkling as to how we can live as long...
I dunno: swimming and summer always makes me think of La Jolla Shores or Windansea, California...