Hepatitis D is also called “delta hepatitis.” It is a partially defective virus that must enter the hepatitis B virus in order to penetrate and infect liver cells. Therefore, a person must have HBV present, either as a carrier or in clinical infection, in order to acquire HDV infection. When HBV infection is over, HDV […]
The presence of unexpected alloantibodies (antibodies against red cell antigens) in patient serum found in pretransfusion screening of recipients is 0.7%-1.6%. This averages 9% (range, 6%-36%) in multitransfused patients. Infants less than 4 months old usually do not form alloantibodies against transfused red cell antigens that they lack. After that, age per se does not […]
