Leon virus
Type 1 (known as the Brunhilde virus) and Type 2 (known as the Lansing virus). Immunity to one strain does not provide protection against the other two. All three strains are therefore included in the poliovirus vaccine.
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- Leonardo da Vinci
Architect, engineer, inventor, painter and the father of anatomic art. Leonardo da Vinci first became interested when he was asked by a Veronese anatomist named Marc Antonia Della Torre to do the illustrations for a text of anatomy. Della Torre was to do the dissecting and Leonardo the drawings. Della Torre died unexpectedly and Leonardo […]
- LEOPARD syndrome
L — lentigines (dark freckles) on the head and neck E — electrocardiogram (EKG) abnormalities O — ocular hyperteleorism (wide-spacing of the eyes) P — pulmonary stenosis A — abnormal genitalia R — retardation of growth D — deafness (sensorineural type) The LEOPARD syndrome is caused by mutations in the gene for protein-tyrosine phosphatase, nonreceptor-type, […]
- Leper
1. Someone with leprosy (Hansen disease). The term leper is now in disfavor. 2. By extension, a pariah. A person who is avoided or shunned by society. From the French lepre, from the Greek lepros meaning scaly, referring to the scales that form on the skin in some cases of leprosy.
- Lepra
1. Leprosy (Hansen disease) 2. Before the mid 19th century, psoriasis. The acronym LEPRA stands for the Leprosy Relief Association.
- Leprosy
An infectious disease of the skin, nervous system, and mucous membranes that is caused by the bacteria Mycobacterium leprae. Leprosy is transmitted via person-to-person contact. For thousands of years leprosy was one of the world’s most feared communicable diseases because the nerve and skin damage often led to terrible disfigurement and disability. Today leprosy can […]