engineered HBS Ag particles. Also known as
australian antigen
••• 591
There has been no
confirmed case of
T lymphocyte rosette
••• 591 transmission through saliva,
though the virus may be
HIV present in the saliva of formation
infected persons. A salivary
pro- tein called secretory
leucocyte protease inhibitor
has anti-HIV activity
••• 228
•••
S.pneumococci
•••
E. hystolytica
Prozone
phenomenon
•••
•••
•••
Sarcina
•••
•••
4 mycology and •••
paracytology. 56.
Flask shaped ulcers
in entameoba
••• 304
histolytica
Inspissation
toxin. That is, it is
Ehrlich Phenomenon:The difference
necessary to mix
between the amount of Toxin that will
••• more than one letha
exactly neutralize one unit of anti
308
To eliminate the risk of
unit of toxin to a
contamination during
toxin and that, which, when added to
repeated subcultures, and
neutral mixture of t
also for economy and safety,
one unit of anti toxin, will leave one
Salmonella
Castaneda's method of
toxin and anti toxin
culture may be adopted. In
lethal dose of the toxin is greater than
this, a double medium is ~d.
to make the mixture
The bottle of bile broth has
one lethal dose of the to
an agar slant on one side.
After inoculation of blood,
lethal again.
the bottle is incu- bated in
Cornybacterium
the upright position. For
subculture, the bottle is
merely tilted so that the
broth runs over the surface Danysz
of the agar. It is reincubated
Phenonmenon:The
diphtheria
in the upright position. If
sal- monellae are pr~sent,
colonies will appear on reduction of the
the~t.
neutralizing effects
of an anti-toxin when
••• 309
Antitoxin
(Dreyer's toxin is added to it in
agglutination tube) divided doses rather
••• 309
H agglutination leads to the than adding the
whole amount of
formation of cotton woolly
clumps while O
toxin in one step is
agglutination is seen as a
disc-like Pattern at the
•••
known as the Danysz
bottom of the tube.
••• 158 •••
Phenomenon. .@qraetella pertussis}~h T ce
has, in addition, a tran
lymphocytosis P,romoting trea
factor acting on both _ I_ suc
and B cells, acts as a good (PH
adjuvant for diphtheria and (Co
••• 309
tetanus toxoid in the triple und
vaccine. tran
Felix tube) qac
Other adjuvants commonly
used with human vaccines Stap
are ql!Jmiaium hydroxide (Co
and phosphate viru
Duckering " method of disinfection, as
it is known, not only claims elfective ••• 257
sterilisation of tho material, but also
Bacillus anthracis
tho avoidance of perceptible injuiy ...
•••
•••
••• 112
••• 257
•••
Yersinianpestin in
ghee broth ••• 339