Gip ht heria
foci
Isolation of
diphtheria
cases and 2 bacteriological diagnosis
determination of the diphtheria antitoxin level in sera (by Jensen method1
medical care
a11 suspects
1
r ) isolation
5-7 days Repeating of
the bacteriological
investigations
J -
diphtheria antitoxin
level in serum
Bacteriological investigations
(simultaneous control of the
whole community including
carriers
treatment with antibiotics
children and adults)
Immunization of a l l susceptible people and
of a11 persons with no immunization records
According to circumstances-a booster dose
in the whole affected population
biological methods (Schick1
diphtheria antitoxin titration
(by Jensen method 1
The immunity status
of the population
Clinical surveillance of a11 febril and sore throat cases
Checking of the immunization registered data
I
Isolation
diphtheria antitoxin level in serum
treatment with antibiotics
Bacteriological investigation (survey of the
Identification of
whole community (children + adults) - diphtheria
carriers
Clinical records (sore throats, pharingitis, cutaneous infections)
Testing of the immunity status (by ShichlImmunization of the non-immune
Non-epidemic
communities
I
FIG. 44. Outline of a plan of investigation in diphtherial foci and in non-epidemic communities.