This is a very difficult topic. One cannot take a blood test at the gate and expect a result in 30 minutes. In fact it would be difficult to get the results within 24-hours.
To expedite this, we would have to have a licensed lab on site. Aside from the astronomical costs, this would bring about numerous issues in regard to privacy. If a client has an illness, are we allowed to know. What if the client has an illness, but does not know himself. Are we in a position or qualified to indicate that he or she has markers in their blood that indicate cancer?
To our knowledge, no club of this nature anywhere in the world does medical testing. This means you need to take some responsibility yourself. Be careful with whom you interact and how you interact. Make sure you use protection to minime any risk.