الفهرس 
INTRODUCTION AND AIM OF THE WORKOnly 14 pages are availabe for public view
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Abstract
INTRODUCTION
Tuberculin test is an important tool for diagnostic and
epidemiological purposes. It is used as a measure for prevalence of
tuberculous infection in the community. It is considered as a delayed
hypersensitivity reaction t)’j)e IV to tuberculoprotein in patients \.\ith
component cell mediated immunity.
Steroid contraceptives containing estrogen and progesterone in
>·ariab!e proportion were found to suppress experimental allergic
encephalomyelitis in animals (Lenncr: and Bud. 1973) a disease thcught
to be mediated by delayed h}’j)ersensithity reaction similar to tuberculin
test.
In 1979. Gerrersen er :zi. found increased reactivity to dinitrochlorobenzene
skin :es: in women receiving injectable contraceptives
(Depo-provera) and in those on combined oral contraceptive pills. In
1980, Gerrersen eta!. found no significant difference between women
on either oral combined pills or injectable contraceptives and control
group as regard the in-vitro lymphocyte proliferation in response to
mitogens (PHA) and (CO:\-A).