Lymphocytes. Pathogens contain certain chemicals that are foreign to the body and are called antigens. Each lymphocyte carries a specific type of antibody-a protein that has a chemical 'fit' to a certain antigen.
Carpet vs. Laminate Flooring. When looking at flooring options, carpets and laminate floors are popular choices. Their cost is usually comparable and is cheaper than solid hardwood flooring. Roughly half of new flooring sold in America every year is carpet. Laminate flooring is considered more hygienic and hypoallergenic than carpet, as it is easily cleaned, and dirt won't go unnoticed.
Always more expensive than laminate, low-end oak, maple, and ash solid hardwood goes for $3.00 to $5.00 / sq. ft. Wider format plank flooring of the same species and narrower flooring of exotic species go for $5.00 / sq. ft., with prices steeply escalating after that. Durability. Expect 10 years of use, maximum.