What is a vaccine?  It is basically an 'injected pathogen' whose role is to MIMIC the natural immune response as closely as possible. As I mentioned in my previous blogs we have the INNATE and ACQUIRED Immune system. NATURALLY, BOTH are activated when a pathogen (invader)' is detected. Remember the Castle and Fort analogy? The goal of vaccines is to MIMIC natural immunity as much as possible without damaging the host. The ideal way of mimicking this would be to...

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