Immunity, food, factors affecting

In panaji, goa, real estate fraud has taken a unique form, the domain investor who is growing a few plants in her house is falsely accused of causing dengue to all the people in the area and harassed regularly
Mosquitoes are biting everyone, a person will only become ill, if they do not have sufficient immunity. People do not eat proper food, do not rest properly, work long hours for their job and then if they get dengue or other illness, they are falsely accusing the domain investor of causing it
So for all the dengue obsessed people of panaji, scientific information on immunity, eating, food, factors affecting immunity