Three major forces are involved in nosocomial infections. The first is antimicrobial use in hospitals and long-term care facilities. The increased concern about gram-negative bacilli infections in the 1970s to 1980s led to increased use of cephalosporin antibiotics.
In its yellow-brown liquid form, sulfur mustard doesn't smell like anything; the characteristic sweet aroma develops only as it evaporates. In general, blister agents like mustard gas smell pretty good. Another blister agent developed around the time of the First World War, lewisite, smells intensely of geraniums. A blister agent called phosgene oxime has an unpleasant, irritating smellâbut with hints of freshly mown hay. The related diphosgene smells like anise. Blood agents, which incapacitate or destroy your blood cells, come in a variety of flavors.
Blisters are pockets of fluid that form on the skin, often as a reaction to rubbing, friction or burns. A blister is formed by the body's defence mechanisms to help protect the skin against further damage and to promote healing. Some blisters are caused by conditions such as chickenpox and impetigo. Burns: Flames, steam, or contact with a hot surface can cause blisters, as can severe sunburn or exposure to other types of radiation. 2  Contact with irritants: Skin may blister when it comes in contact with chemical irritants, cosmetics, and many plant and animal toxins.