The public health measures that are most effective against pathogens transmitted through common vehicles are the water purification and food safety regulations. The most common vehicles or modes of transmission of infectious pathogens includes water, food, air, or the blood during transfusion. Ensuring use and supply of clean water and also safety food regulations may reduce the spread and transmission of disease causing pathogens.
<span>c. regular exercise has little impact on maintaining peak performance after age 30</span>
A frog whose skin looks like the environment in which it lives
