Letter: h

Hepatitis A Virus

Water which contains ions of Magnesium (Mg++) and Calcium (Ca++). Hard water ions make some disinfectants less efficacious.

A small biochemical group that initially by itself cannot elicit an allergic response. It must conjugate to a carrier (usually protein) to elicit an antibody response. Once it is recognized with a carrier, and antibodies are produced, the body may recognize the hapten without the carrier. Type I allergic reactions to chemicals like dyes fall into the hapten category.

Stoppage of bleeding.

Abnormal condition of red blood cells in the urine.

An enveloped, single-stranded RNA virus. It is acquired from blood or sexually. The acute phase of infection is marked by jaundice, weakness, fatigue, fever, and nausea. Some patients develop a chronic HBV infection characterized by an inflammatory process that can lead to Cirrhosis and is also known to cause cancer of the liver. HCW occupational concern. There is a vaccine for HBV which has proven to be very successful..

An enveloped, single-stranded RNA virus that is transmitted by the fecal-oral route but is also found in the semen and blood; characterized by jaundice, fever, weakness, flu-like symptoms, and lymphadenopathy. There is a vaccine.

Inflammation of the liver caused by disease or infection.

High-Efficiency Particulate Air

The relationship that states that, at a given temperature, the volume of gas that dissolves in a liquid is directly proportional to the partial pressure of the gas.