This term is often used interchangeably with vaccination or inoculation, although the act of inoculation does not always result in immunity. Resistant to many antimicrobial drugs. A new strain of pathogen may be resistant to many or all of the drugs that previously worked against the disease caused by the pathogen. An outbreak of disease that spreads throughout the world. Bacteria, viruses, parasites, or fungi that have the capacity to cause disease in humans.
Quarantine can be voluntary or, in an emergency, it can be ordered by public health officials.
SSPE is always fatal. When measles or rubella virus infects brain cells, the immune system responds by attacking the virus. SSPE is the result of the immune system activity, not the virus. A strain that responds to a particular drug may evolve to a new strain that does not respond to the drug. Injection of a killed or weakened microorganism or components to prevent the disease caused by that microorganism.