State any two conditions essential for good health

what are the different means by which infectious disease are spread

Two conditions essential for good health are: State of physical, mental and social well-being. Better surroundings or -environment.

Explanation:

Infectious diseases can spread in a variety of ways: through the air, from direct or indirect contact with another person, soiled objects, skin or mucous membrane, saliva, urine, blood and body secretions, through sexual contact, and through contaminated food and water.

this protocol provides a detailed procedure for total protein extraction for western blot analysis from achieved samples following trizol isolation of rna.