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Tbilisi (sh) and delayed allergy (medicine)


Tbilisi (sh)




formerly Tiflis

City (pop., 1998 est.: 1,398,968), capital of the Republic of Georgia on the Kura River.

Founded งใ AD 458 as the capital of the Georgian kingdom, its strategic position on trade routes between Europe and Asia led to its frequent capture. It endured under successive Persian, Byzantine, Arab, Mongol, and Turkish rulers and came under the control of the Russian Empire งใ 1801. It was made the capital of the Transcaucasian Federation in 1921, the Georgian S.S.R. in 1936, and the independent Republic of Georgia in 1991. Some ancient structures still exist in the city, which is now a major cultural, educational, research, and industrial centre.


delayed allergy (medicine)


delayed allergy


A type IV allergic reaction; so called because in a sensitised subject the reaction becomes evident hours after contact with the allergen (antigen), reaches its peak after 36 to 48 hours, then recedes slowly. Associated with cell-mediated responses.

See: delayed reaction.

Compare: immediate allergy.