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.
The two flooring types are similarly priced, but high-end, high pile carpeting will likely cost more than high-end laminate flooring. Installation costs must also be considered, with the tongue-and-groove planks often found in laminate flooring making installation relatively easy and popular with the do-it-yourself (DIY) crowd.