When you go to Mexico, you take drugs because of the parasites in the water.
I don't because I don't drink the tap water or have drinks with ice cubes. Everything I drank contained alcohol, came out of a bottle (beer, wine, soda, water) or had fresh squeezed fruit juice in it. I used bottled water to make my hotel room coffee. Tea and coffee abroad boils the water, so it's safer. I haven't been sick (in Mexico) yet. I got incredibly ill in Malaysia once, learned my lesson about ice cubes.
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