Triennial Report on Vaccination in the Hyderabad Assigned Districts
                        during the year 1901-02.

Strength of the department.

1. The Department was able to work belowthe sanctioned strength of 45
owing to the use of lanolinated calf lymph.

Manufacture of lanolinated lymph.

2. Lanolinated lymph was manufactured at Amraoti and used throughout
the season, and gave a percentage of 96.6 suc-
cessful primary cases similar to that of pure calf
lymph used in the previous year. The cost of the lanolinated lymph was 3
annas and 3 pie per 100 children operated on ; and if we imported the lymph
from the Bangalore Vaccine Institute, the cost would be Rs. 6 per 100.

Annual Statement No. I—Season's
work.

3. The total number of operations performed was 120,418 during the
year under report against 107,788 in the pre-
vious year, showing an increase of 12,630. The
number of infants available for vaccination was
67,277. Of these 92.8 per cent were vaccinated.

Proportion of the population suc-
cessfully protected.

4. The proportion of population protected
was 29.9 per mille against 27.3 in the previous
year.

Results of primary vaccination.

5. Success in primary vaccination varies in different districts, the highest
being in Buldana (98.9), Akola (97.3), and
Amraoti (97.0), the lowest being in Basim (91.3).
This is due to the lymph reaching the Basim district later than the other districts
on account of its distance from head-quarters, thereby losing its efficacy to a
certain extent.

Re-vaccination.

6. The total number was 38,122. Of these 6,993 were successful, giving
a percentage of 18.3.This low percentage of
success in re-vaccination points to efficient pri-
mary work, as the more efficient the primary work is, the poorer will be the
re-vaccination results, and vice versa. It is also due to careful verification both
by Vaccinators and Superintendents.

Annual Statement No. II—Cost of
the department.

7. The cost, including the manufacture of lanolinated paste, was Rs. 17,626,
or a decrease of Rs. 991 over the previous year,
and Rs. 576 compared with that of 1899-1900.
This is due to the use of lanolinated lymph, which
enabled me to work with a reduced staff. The average cost of each vaccination
was 3 annas and 3 pie against 3 annas and 9 pie during the previous year.

Diagram showing the average pro.
portion of population protected and the
average death-rate from small-pox.

8. The diagram showing the population protected during the seven years
ending 1902 and the death-rate from small-pox
per 10,000 of population during the year 1901
is given below.

257—(G.C.F)

Diagram.