Health: The Ultimate Treasure - How are communicable diseases caused and spread?

Pathogens are disease-causing microorganisms such as $Bacteria$, $Viruses$, $Fungi$, and $Protozoa$.

Communicable diseases are microbial diseases that spread from an infected person to a healthy person through $Air$, $Water$, $Food$, or $Physical\ Contact$.

Common modes of transmission include inhalation of droplets (e.g., $Tuberculosis$), consumption of contaminated water (e.g., $Cholera$), and food poisoning (e.g., $Typhoid$).

Vectors are insects or animals that carry disease-causing microbes. For instance, the Female Anopheles mosquito carries the parasite of Malaria ($Plasmodium$), and the Female Aedes mosquito acts as a carrier of the $Dengue$ virus.

Preventive measures involve maintaining personal and community hygiene, using mosquito nets/repellents, and $Vaccination$ to produce antibodies against specific pathogens.