Looking at how diseases spread using world maps

Robby Robin's Journey

Understanding diseases and how they spread is a hot topic these days, for obvious reasons.  Let’s take a look at the different ways in which diseases can spread and see if that helps.  In each case, before scientists understood both the disease (Lyme disease, for example, still isn’t always diagnosed correctly) and the cause of the disease, there was no way to stop or slow it or to cure or manage its effects.  That’s where we stand right now with COVID-19.  It’s a work in progress.

Lyme disease. Lyme disease is a bacterial disease carried by ticks and passed on by tick bites. It is not contagious; it does not spread from human to human. It does however affect an increasing number of people within the world tick regions, and if it is not detected early, it can be a scary, debilitating disease, even fatal. Also, these ticks are moving…

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