The intelligent symptoms of disease

The two important factors that lead a disease to become a epidemic, is

• Massive infection rates
• Considerable life cycle to cause infection

How does this reflect in the symptoms.

1. Involuntary spread : Symptoms like sneezing and diarrhea, cause the patient to spread the germs into nearby humans.

2. No manifestation : Diseases like AIDS don't manifest long time after the infection, allowing the infection to spread undetected.

3. Behaviour change : Rabies causes dogs to bite, like many other diseases that transmit from animals to humans.

Premise : When humans started agriculture, different species of plants adapted in various ways to make use of agriculture.

1. More than usual produce :

Some plants, like wheat started producing bigger seeds than usual so that humans would select them.

2....