i down with flu . . . now weather really upside down . just too hot . we in & out vehicle very fast will kena cold . So be ready to be shot down.
same crap , drink lots of fluids .
u have your rights to off aircon and wind down all windows if u think paxes behind are sick .
but tell them nicely your reasons .
they may chose some other taxis if they disagree .
see doctor not cheap tell them.
buy vitamin c also not cheap.