Integrated Disease Surveillance Project (IDSP)

Integrated Disease Surveillance Project (IDSP) was launched in August 2005 and implemented from 2006 in Tamil Nadu. The Programme continues during 12th Plan under NRHM is to detect and respond to disease outbreaks quickly.

1. Surveillance of Communicable Disease

The IDSP is a nucleus of collecting data pertaining to communicable disease burden from various health facilities both Govt. as well as private hospitals. The data collection is being done on Daily / Weekly / Monthly basis depending upon the health situation.

IDSP online data entry (weekly) is being done by respective District Surveillance Units in the website, monitored by State and Central Surveillance Unit.

Satellite Interactive Terminal (SIT) has been established in 48 units for distance learning and sharing of information on disease surveillance and monitoring of control activities. Video conferencing through interwise is conducted on weekly basis with all District Surveillance Units.

1.1 Weekly Analysis and Forecast

The collected data are analysed at State and District Level and the health problems are being addressed to the Deputy Directors of Health Services concerned for remedial action. The IDSP Unit also forecasts impending outbreak/ epidemic to the districts from the data collected periodically and also helps in formulating health planning for prevention of occurrence of outbreak / epidemic. Regular weekly alert are send to the District.

1.2 Daily Reporting

Daily Line List of admitted cases of ADD, Fever Syndrome, AES, AEFI and Jaundice and all Lab confirmed cases with epidemic potential are being collected and sent on daily basis to SSU through email in the prescribed format from the following units viz., Government Medical College Hospitals and laboratories, Government Head Quarters / Taluk Hospitals and laboratories, Primary Health Centres and laboratories, Private Hospitals and laboratories and Zonal Entomological Team laboratories. Clustering of cases is being identified and warning signals are sent to the concern district for remedial action.

Data reported under IDSP are being shared and reconciled at the State Level with the other vertical programs like Vector Borne Disease Control Program and Vaccine Preventable Diseases to have uniformity in reporting and documentation.

1.3 Outbreak Reporting

State and District Surveillance Units notify the outbreaks immediately. Rapid Response Team (RRT) visits the affected area for investigation and sends a First Information Report (FIR) to District Surveillance Unit. DSU send the FIR to SSU and CSU immediately and also update in the Web portal. Consolidated and Follow-Up of the outbreaks sent to CSU on every Monday, including Nil reports. This has facilitated overall improvement in outbreak reporting in the State through IDSP.

2. Human Resources

State Surveillance Unit

The Joint Director of PH&PM (Epidemics) has been designated as State Surveillance Officer, The State Surveillance unit of IDSP is functional at the Directorate of Public Health and Preventive Medicine with the following contractual manpower: Epidemiologist, Consultant Training, Veterinary Consultant, Microbiologist, Entomologist, Data Manager, Consultant Finance and 2 Data Entry Operators.

District Surveillance Unit

The Deputy Directors of Health Services at revenue districts have been designated as District Surveillance Officers (DSO) in 32 districts with the following contractual manpower Epidemiologist, Microbiologist, Data Manager, Data Entry Operator at DSU and Government Medical College, Lab. Technician, Lab Attendant.

3. Laboratory Strengthening

Laboratory services are an important component of disease surveillance. IDSP is giving due importance to laboratory based surveillance. Eight Government Medical Colleges have been included under State Referral Lab Network in addition to two Priority District Labs, to facilitate laboratory investigations particularly during outbreaks. There is a drastic improvement in the laboratory confirmation of outbreaks reported in Tamil Nadu in 2012-13 (Up to Nov 2012) when compared to the previous years. This has been due to the effective co-ordination and involvement of the Medical College Referral Lab Network, Priority District Labs, 9 Zonal Entomological Teams (ZET), Institute of Vector Control and Zoonoses, Hosur and King Institute of Preventive Medicine, Chennai. The vision is to have a District Public Health Laboratory (DPHL) in each revenue district to be established in a phased manner over a period of time.

3.1 Priority District Labs

The laboratories attached to the District Head Quarters Hospitals at Cuddalore and Ramanathapuram have been identified as Priority District labs by Govt. of India. Elisa Reader & Washer and Binocular Microscope have been procured and installed in these labs. Microbiologists are appointed and the laboratory is fully equipped to investigate bacterial culture, isolation, sensitivity testing and serological investigation.

3.2 District Public Health Laboratories (DPHLs)

Based on the success of the Priority District Labs, the District Public Health Lab formed in 30 Districts by Posting 1 Microbiologist, 1 Lab Tech, 1 Lab Attendant, DPHL is functional at Distinct Head Quarters Hospital and the laboratory is fully equipped to investigate bacterial culture, isolation, sensitivity testing and serological investigation.

Functions of DPHL

  • Sample lifting during outbreaks

  • District Hospital Surveillance

  • Ensuring OT sterility in the PHCs and GHs.

  • Lab quality management (Calibration of equipments, Bio medical waste management)

  • Early Warning Signals” of Impending Epidemics

  • Confirmation of Epidemic Prone Diseases

  • Key Component of “Rapid Response Team”

  • Training for Lab Tech at PHC

3.3 Medical Colleges Referral Lab Network

The Government Medical Colleges have good laboratory infrastructure and trained manpower to investigate all the communicable diseases specified under IDSP. Eight Govt. Medical Colleges have been identified under Medical College State Referral lab Network Plan. These Medical Colleges have been selected based on their strategic location to cover the linked districts. The Department of Microbiology of the concerned medical colleges is the focal point of lab activity and the Prof & Head of Department of Microbiology is the Nodal Person for all lab activities connected with IDSP.

S.No Medical College Lab Network Districts Covered
1 Madras Medical College Thiruvallore, Kancheepuram & Villupuram
2 Vellore Medical College Vellore & Thiruvanamalai
3 Salem Medical College Salem, Dharmapuri, Krishnagiri & Namakkal
4 Trichy Medical College Trichy, Perambalur, Karur & Pudukottai
5 Thanjavur Medical College Thanjavur, Thiruvarur & Nagapattinam
6 Coimbatore Medical College Coimbatore, Erode, Nilgiris & Tiruppur
7 Madurai Medical College Madurai, Dindigul, Theni, Virudhunagar & Sivaganga
8 Tirunelveli Medical College Tirunelveli, Tuticorin & Kanyakumari

4. Training

Training of doctors in Government Medical Colleges and Government Hospitals and PHCs under IDSP is been conducted every year. which has improved the reporting from the Government hospitals at Secondary and Tertiary levels.

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