>doesn't every place have its own local diseases and parasites???

You're right. I live in the mid-Atlantic region of the country. Two months ago, we went hiking in the woods and my wife and I forgot to check our three kids for ticks until the next day. My 4 year old son had two ticks on him. A week later, bulls-eye rash about 5 inches in diameter appeared on his back around one of the tick bites.

Three weeks of antibiotics later, he was fine but there are a lot of people that get Lyme's Disease without even knowing that they had a tick bite, or the rash that appears in the majority (but not all) is in their hairline so they don't see it. Untreated, it can have a lot of the same effects the article attributes to this fungal infection.