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  • Title: Ocular and dermal delayed hypersensitivity reactions in guinea-pigs following infection with guinea-pig inclusion conjunctivitis agent (Chlamydia psittaci).
    Author: Monnickendam MA, Darougar S, Tilbury AM.
    Journal: Clin Exp Immunol; 1981 Apr; 44(1):57-62. PubMed ID: 7261478.
    Abstract:
    Guinea-pigs which had been sensitized to guinea-pig inclusion conjunctivitis agent by ocular infection, were given ocular and dermal challenges with a range of doses of agent. Ocular delayed-type hypersensitivity responses were elicited by a wide range of doses. Such responses were associated with the presence of chlamydial inclusions and inflammatory cells. The EID50 for ocular reinfection was only slightly higher than that for primary ocular infection. Dermal delayed-type hypersensitivity reactions were produced only when high doses of agent were used. The relevance of these observations to human chlamydial eye disease is discussed.
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