WebA vaccine is a biological preparation that provides active acquired immunity to a particular infectious or malignant disease. The safety and effectiveness of vaccines has been widely studied and verified. A vaccine typically contains an agent that resembles a disease-causing microorganism and is often made from weakened or killed forms of the microbe, …

WebRinderpest (also cattle plague or steppe murrain) was an infectious viral disease of cattle, domestic buffalo, and many other species of even-toed ungulates, including gaurs, buffaloes, large antelope, deer, giraffes, wildebeests, and warthogs. The disease was characterized by fever, oral erosions, diarrhea, lymphoid necrosis, and high …

WebThe badge of the Order of Australia is a convex disc (gold for AKs, ADs and ACs, gilt for AOs, AMs and OAMs) representing the Golden Wattle flower. At the centre is a ring, representing the sea, with the word 'Australia' below two branches of golden wattle. The whole disc is topped by the Crown of St Edward.The AC badge is decorated with citrines, …

WebField Marshal Jeffery Amherst, 1st Baron Amherst, KB (29 January 1717 – 3 August 1797) was a British Army officer and Commander-in-Chief of the Forces in the British Army.Amherst is credited as the architect of Britain's successful campaign to conquer the territory of New France during the Seven Years' War.Under his command, British forces …

WebRaggedy Ann is a character created by American writer Johnny Gruelle (1880–1938) that appeared in a series of books he wrote and illustrated for young children. Raggedy Ann is a rag doll with red yarn for hair and a triangle nose. Gruelle received US Patent D47789 for his Raggedy Ann doll on September 7, 1915. The character was created in 1915 as a doll, …

WebSmallpox was lethal to many Native Americans, resulting in sweeping epidemics and repeatedly affecting the same tribes. After its introduction to Mexico in 1519, the disease spread across South America, devastating indigenous populations in what are now Colombia, Peru and Chile during the sixteenth century. The disease was slow to spread …

WebAls Pocken, Blattern oder Variola (lateinisch variolae), genannt auch Pockenkrankheit, bezeichnet man eine für den Menschen gefährliche und lebensbedrohliche Infektionskrankheit, die von Pockenviren (Orthopox variolae) verursacht wird.Durch ihre hohe Infektiosität und Letalität gehört die Erkrankung zu den gefährlichsten des …

WebAbū Bakr al-Rāzī (full name: أبو بکر محمد بن زکریاء الرازي, Abū Bakr Muḥammad ibn Zakariyyāʾ al-Rāzī), c. 864 or 865–925 or 935 CE, often known as (al-)Razi or by his Latin name Rhazes, also rendered Rhasis, was a Persian physician, philosopher and alchemist who lived during the Islamic Golden Age.He is widely regarded as one of the most important figures in the …

WebSmallpox epidemics in 1780–1782 and 1837–1838 brought devastation and drastic depopulation among the Plains Indians. By 1832, the federal government established a smallpox vaccination program for Native Americans (The Indian Vaccination Act of 1832). It was the first federal program created to address a health problem of Native Americans.

WebA pandemic (/pəndemik/) is an epidemic of an infectious disease that has spread across a large region, for instance multiple continents or worldwide, affecting a substantial number of individuals. A widespread endemic disease with a stable number of infected individuals is not a pandemic. Widespread endemic diseases with a stable number of infected …