Mallam-type vaccinator, London, England, 1874-1900
Related Themes and Topics
The introduction of vaccine into the body for the purpose of inducing immunity. Coined originally to apply to the injection of smallpox vaccine, the term has come to mean any immunising procedure in which vaccine is injected.
The condition of being immune, the protection against infectious disease conferred either by the immune response generated by immunisation or previous infection or by other nonimmunologic factors.
Clear, slightly yellowish fluid derived from the blood and similar in composition to plasma. Lymph conveys white blood cells and some nutrients to the tissues.
Smallpox is an infectious virus unique to humans. It results in a characteristic skin rash and fluid-filled blisters. After successful vaccination campaigns throughout the 1800s and 1900s, the World Health Organisation certified the eradication of smallpox in 1979. Smallpox is the only human infectious disease to have been completely wiped out.