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NICD Branch Varanasi
This
centre as Regional Filaria Training & Research Centre was established in
1965. Engaged primarily in training and research in filariasis. Centre has
contributed in the past to strengthen National Filaria Control Programme. The
other arm i.e. Epidemiological Investigation Unit is added in 1973, is engaged
in field based operational research, action research in communicable diseases,
water quality monitoring and promotion of health system development. With
limitations of existing N.F.C.P. strategy and success of operational efficacy
of annual single dosage, this branch is poised to have better supporting role
and added responsibility to demonstrate efficacy of community directed
treatment regimes in control of filariasis. Accordingly activities are being
tailored.
Routine services/activities
During
this yar large number of new cases of filariasis have been registered in our
clinic and follow up visit carried out by old patients. Monthwise break up of
new & follow up cases are given as under. Out of 891 new cases registered,
11 were +ve for mf. This indicates low level of microfilaramia among patients
of filariasis as compared general endemic population.
|
Month
|
New Cases
|
Old Cases
|
Total
|
No. of +ve
|
|
Jan. 97
|
63
|
325
|
388
|
--
|
|
Feb. 97
|
70
|
222
|
292
|
--
|
|
Mar. 97
|
100
|
306
|
406
|
03
|
|
Apr. 97
|
75
|
339
|
414
|
--
|
|
May 97
|
99
|
226
|
325
|
01
|
|
June 97
|
95
|
262
|
357
|
--
|
|
July 97
|
120
|
342
|
462
|
04
|
|
Aug. 97
|
103
|
283
|
386
|
03
|
|
Sep. 97
|
87
|
195
|
282
|
--
|
|
Oct. 97
|
89
|
381
|
470
|
--
|
|
Nov. 97
|
80
|
309
|
389
|
--
|
|
TOTAL
|
891
|
|
|
11
|
Isolation of Vibrio cholerae from
stool samples of gastroenteritis
During
the year month wise stool samples received from cases of gastro enteritis
admitted in I.D.H., Varanasi are given as under. Only one sample was found +ve
for Vibrio cholerae. Cases were much
less as compared to preceding years.
|
Month
|
Area
|
Total
Sample
|
Results
|
|
|
|
|
+ve
|
-ve
|
|
August
97
|
I.D.H.
|
12
|
01
|
11
|
|
Sept.
97
|
I.D.H.
|
23
|
--
|
23
|
Persistence of Vibrio cholerae
during interepidemic period
From
December to March water samples from river, drains, tap water, ponds and other
potable sources are collected to find out reservoir of Vibrio Cholerae bacillus
during non endemic periods. Therefore, water samples have been collected in
month of December, 1997 and filtered though Kisselghar Media and cultured.
During this month (upto 12.12.97) 11 samples have been tested, one of them has
sown Vibrio Cholerae. Non 01 positive water sample is drawn from water tank
near Durgakund.
Water
quality monitoring of drinking water in Varanasi
Portability
of water is tested at this centre by undertaking Bacteriological quality
monitoring (coliform count). During the year 150 water samples were tested for
the same. Results are given as under. It may be noted that information
pertaining to unsatisfactory sources has been conveyed to Corporation
Authorities who have taken remedial measures accordingly.
|
Month
|
Total samples
|
Result
|
|
|
Area of Un-satisfactory
|
|
|
|
Excellent
|
Satisfactory
|
Unsatisfactory
|
|
|
Jan. 97
|
16
|
01
|
15
|
---
|
|
|
Feb. 97
|
10
|
02
|
08
|
---
|
|
|
Mar. 97
|
11
|
03
|
08
|
---
|
|
|
Apr. 97
|
14
|
02
|
12
|
---
|
|
|
May 97
|
09
|
02
|
06
|
---
|
Hanumanpura
|
|
June 97
|
11
|
01
|
09
|
01
|
Bhelpura
|
|
July 97
|
|
|
|
|
Chowkaghat & Bhelupura
|
|
Aug. 97
|
17
|
03
|
07
|
07
|
Kedarghat, Assi Ghat, Sonarpura, Bhelupura, Kamachha,
Rewari talab
|
|
Sep. 97
|
17
|
03
|
13
|
01
|
Hanumanpura
|
|
Oct. 97
|
15
|
03
|
12
|
---
|
|
|
Nov. 97
|
16
|
02
|
13
|
01
|
Hanumanpur
|
|
Total
|
150
|
23
|
113
|
14
|
|
Feasibility
of O.R.S. distribution through depot holders
To find
out feasibility of distribution of O.R.S. during episode of diarrhoea in under
five children through Depot Holders, a project was developed and O.R.S.
supplied to them. During the year 600 packets of O.R.S. were supplied to Depot
Holders in slum areas of Sarainandan.
Limited
surveys conducted indicates that in 63% of episide of diarrhoea mothers have
used either home made fluid or O.R.S. supply as compared to only 32% in
controlled slum areas.
Storage & supply of reagents & materials
These
Media were not supplied to other institution. Our centre supplied slides of mf.
& infective larval stages (W. bancrofti) to P.S.M. & Microbiology
Department of I.M.S., B.H.U., Varanasi during, 1997.
Diagnostic Services
Large
number of case of filariasis from District of Eastern U.P. are sent to our
centre for diagnosis. During this year 63 were found un-satisfactory.
Implementation of revised strategy in control of Filariasis in
Varanasi district
On 22nd
November, 1997 National Filaria Day was observed in entire city of Varanasi and
four community development block namely Kashi Vidyapith, Arajiline, Sevapuri
& Baragaon. 11 lacs population in urban area and 8,62,000 population was
targeted in rural areas. Govt. of U.P. established 813 booths in city and 743
in rural areas Govt. 65% population in urban & 68% population in rural were
administerd DEC dosages as per schedule given below:
|
Age
range (in year)
|
DEC dosage
(50 mg.)
|
|
01 to
02
|
1
Tab.
|
|
02 to
04
|
2
Tab.
|
|
04 to
08
|
3
Tab.
|
|
08 to
11
|
4
Tab.
|
|
11 to
15
|
5
Tab.
|
|
above
15 years
|
6
Tab.
|
Special activities
Kap
(AIDS) among truck drivers
Varanasi
district is one of the major receptive area for transmission of AIDS. Large
number of individuals are employed in metropolitan areas of Mumbai leaving
behind their families. Thereby they are exposed to risk of HIV infection. Back
home during vacation, their female sex partners infected establishing network
of receptive population. Further Varanasi being main city centre of Eastern
U.P. Large number of goods are transported to an across Varanasi through
National Highway. Thus Truck Drivers constitute major risk subject. Therefore,
study was planned with objective to assess sex seeking behaviour and condom use
utilisation among Truck Drivers with objective to develop community based
condom promotion campaign. About 96 Truck Drivers were interviewed in the month
of Dec. 1997 on questionnaire pre-tested earlier. Out of 17 variables studied,
3 of them were analysed and results are given as under :
|
Variables
|
|
Total
Number
|
|
|
Yes
|
%
|
No
|
|
Heard
about AIDS
|
87
|
(74.12)
|
09
|
|
Use
Condom
|
83
|
(79.68)
|
13
|
|
Ready
to give blood for HIV testing
|
86
|
(72.56)
|
10
|
Most of
the drivers are of age group of 30 & above. A noteworthy observation is
that are 70% of them have heard of AIDS, use condom during extramartial sex
(79.68%?) and are willing to give blood for detection of HIV (72.56%). Other
variable studied on the questionnaire are being analysed separately.
Research projects
1. Longitudenial study of childhoold
mortality in rural area of Varanasi district
The
objective of the study are to find out childhood mortality & its course.
Further, medical & sociological factors resplonsible for this will be
assessed. The study was undertaken in a village Gaura about 20 kms away from
the centre in Arajiline Block. 367 under five children were registered out of
total 2420 population residing 271 families. Monthly visits were made to record
mortality. Month wise deaths in under five children are given as below:
|
Month
|
Total
Deaths
|
Immediate
preceding medical cause
|
|
Jan.
97
|
--
|
--
|
|
Feb.
97
|
01
|
Diarrhoea
|
|
Mar.
97
|
03
|
Pneumonia
|
|
Apr.
97
|
--
|
--
|
|
May
97
|
01
|
Diarrhoea
|
|
June
97
|
01
|
Pneumonia
|
|
July
97
|
01
|
Diarrhoea
|
|
Aug.
97
|
--
|
--
|
|
Sept.
97
|
01
|
Pneumonia
|
|
Oct.
97
|
--
|
--
|
|
Nov.
97
|
--
|
--
|
|
Dec.
97
|
03
|
Pneumonia
& Diarrhoea
|
|
TOTAL
|
11
|
|
As can
be seen a total of 11 deaths were recorded in the whole year. Seven of the
deaths were due to the Pneumonia whereas four died due to diarrhoea.
2. Ultrasonographic appearance of
lymphadema in patients attending filaria clinic
The
study was started with objective to find out presence of adult worms in cases
of scrotal lymphedema attending our clinic. Cases are registered at our centre.
The criteria is definitive scrotal swelling with or without presence of
Hydrocele in which minimum history of at least two attacks preceding six month
on the date of registration (active case). Registered cases are sent for
Ultrasonography at X-ray centre to detect adult worm. As methodology is being
standardised, only ten cases were registered during the year. In none of the
cases so far adult worm has been seen. The study will continue.
3. Baseline clinico epidemiological
study of filariasis in Varanasi district
To
prepare baseline data on Clinico Epidemiological aspect of filariasis in
Varanasi District to use it for evaluation of revised strategy for control of
filariasis. 30 clusters were selected randomly as per W.H.P. guidelines using
serial intervals & random number. All the individuals in age group of 15-35
years in selected clusters were examined for presence of lymphedema or scrotal
swelling. Microfilaria carriers status was studied by taking blood slides
between 8 p.m. to 10 p.m. and examining it in the Laboratory. Observation of
the study are recorded as follows:
|
Month
|
Cluster
|
Total B.S. Exam.
|
+ve for mf.
|
mf. rate (%)
|
Diseases Manifestation
|
Disease Rate (%)
|
|
Feb. 97
|
5
|
798
|
28
|
3.5
|
44
|
5.51
|
|
Mar. 97
|
8
|
1248
|
85
|
6.81
|
133
|
10.65
|
|
Apr. 97
|
6
|
485
|
22
|
4.53
|
19
|
3.91
|
|
May 97
|
4
|
334
|
22
|
6.58
|
15
|
4.49
|
|
June 97
|
2
|
167
|
10
|
5.98
|
Nil
|
Nil
|
|
July 97
|
--
|
--
|
--
|
--
|
--
|
--
|
|
Aug. 97
|
3
|
302
|
25
|
8.27
|
29
|
9.60
|
|
Sept. 97
|
--
|
--
|
--
|
--
|
--
|
--
|
|
Oct. 97
|
--
|
--
|
--
|
--
|
--
|
--
|
|
Nov. 97
|
2
|
295
|
20
|
6.77
|
38
|
12.88
|
|
TOTAL
|
30
|
3629
|
212
|
5.84
|
278
|
7.66
|
As can
be seen mf. rate for the aggregate district is 5.84% whereas disease rate is
7.65%. Thus filaria is an important public health problem in the district.
Entomological observation were carried out in some of the clusters as results
of the individual clusters are not relevant, aggregate mosquitogenic data are
given as under:
|
Area
|
Total Cx. Collected
|
Dissection Result
|
Vector Density per ten man hour
|
Vector infection rate
|
Vector infectivity rate
|
|
|
M
|
F
|
T
|
Mf.
|
I
|
II
|
III
|
|
|
|
|
Rural
|
54
|
223
|
277
|
31
|
51
|
16
|
15
|
308
|
4.84%
|
1.67%
|
|
Urban
|
30
|
226
|
356
|
377
|
--
|
71
|
27
|
853
|
3.90%
|
0.78%
|
|
TOTAL
|
84
|
449
|
533
|
408
|
51
|
87
|
42
|
444
|
4.12%
|
0.93%
|
4. Vector prevalence in selected
areas of Varanasi district
The
objectives of the study are to establish permanent station for filarial vector
monitoring, to assess vector density and infection level in Cx. Female
mosquitoes and to provide comprehensive baseline entomological data for annual
single dose of DEC therapy.
Hariharpur
village situated in Kashi Vidyapith Block has been selected as permanent
station. Mosquitoes are collected twice a month by four trained investigators.
Female Culex mosquitoes were dissected in the laboratory for presence of
different larval stages.
|
Month
|
Total Cx. Collected
|
Other sps. collected
|
Dissection Result
|
Vector Density per ten man hour
|
Vectr Infection Rate
|
Vector Infectivity Rate
|
|
|
M
|
F
|
T
|
M
|
F
|
T
|
MF
|
I
|
II
|
III
|
| |