pulmonary tuberculosis is the most common form of tuberculosis bacteria that cause tuberculosis could also spread from the lungs to other parts of the body through blood or the lymph fluid an active tb disease of the lungs airways or larynx is considered to be highly contagious
Before extrusion, the HDPE can be pigmented to yield color-coded pipe. Common PEX tubing colors are natural (hazy clear, unpigmented), white, black, red and blue. The red and blue colors are used to help plumbers and homeowners distinguish between hot and cold water supply lines.
For human applications, three primary colors are typically used, since human color vision is usually trichromatic. For additive combination of colors, as in overlapping projected lights or in electronic visual displays, the primary colors normally used are red, green, and blue.For a subtractive combination of colors, as in mixing of pigments or dyes for printing, the colors magenta, yellow, and cyan are normally used.or human applications, three primary colors are typically used, since human color vision is usually trichromatic. For additive combination of colors, as in overlapping projected lights or in electronic visual displays, the primary colors normally used are red, green, and blue.