Morphology
i)
Shape – It is straight or slightly curved rod , the
sides are parallel and ends are truncated .
ii)
Size – It is about 8 μ in length and 0.4 μ in breadth .
iii)
Arrangement – single form is the characteristic form
but chain form may be found after artificial cultivation , so it is
strepto-bacillus .
iv)
Spores – Central or subterminal apore is found after
culture .
v)
Capsule – Capsule is present and can be demonstrated by
McFadyean’s technique .
vi)
Flagellum – There is absence of flagellum , so it is
non-motile .
vii)
Gram negative b acillus
viii)
Non acid fast bacillus .
Pathogesis produced by bacillus anthracis
There will be the
enlargement of spleen which will be dark red , soft and the disease hass been
called ‘ Splenic fever “ . Septicaemia will develop and bacilli will be
excreted in the saliva , urine and faces
