Tony, you know I only live a stone's throw away from Elizabeth's house. No way also was it dengue or malaria. As has been said heatstroke was the reason. I remember when we met you looked like a freshly cooked lobster. You need to take more care to stay out of the sun at all costs and wear long shirts and light weight trousers.
I will not drink from unknown sources but drink our well water and I take ice from most places. You just need to think first. Get a bit street wise. I am sure Liz's family are not out to kill you, so forget all the worry and enjoy your time. Just take Imodium for the first few days if you get the squirts with the change of environment. Don't forget to come over to ours this time. I should be here still.