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HIV Laboratory (from previous work as National Reference Center for HIV Testing)
- Fem Julia E. Paladin, MSc, PhD (Head, Virology Department)

Referral for HIV Testing and Confirmation

        1997

1998

n = 627

n = 1846

Pos Neg Ind Pos Neg Ind

Patients referred for possible HIV infection

27 8 0 5 42 0

Patients/specimen referred for follow-up

6 15 15 23 8 0

Serum/plasma referred for confirmation

133 88 19 87 100 26

Blood units/donors

316 0 0 0 1555 0

Total

482 111 34 115 1705 26

Evaluation of HIV Test Kits as Requirement for BFAD Registration

Total number of kits evaluated

7

No. of kits approved for renewal of registration

2

No. of kits approved for initial registration

5

 

RITM as National Reference Center for Polioviruses
- Fem Julia E. Paladin, MSc, PhD (Head, Virology Department)

 

1997 1998
n = n =

Total number of stool samples received

620 596

Total number of suspected AFP cases (with stool samples)

127 292

Number of non-AFP cases (with stool samples)

11 15

Results of Virus Isolation:

 

1998
n =

Mixed polio 1 and 2 (Sabin type)

2

Polio 3 (Sabin) + Enterovirus

1

Non-polio enterovirus and/or adenovirus

120

 

National Reference Laboratory for Measles Surveillance
- Fem Julia E. Paladin, MSc, PhD (Head, Virology Department)
Total number of blood samples received     -     430

Results of measles and rubella IgM antibody testing:

 

   Rubella

Pos Equi Neg Total

Positive

11 10 325 346 (80.5%)

Equivocal

1 2 32 35 (8.1%)

Negative

4 2 43 49 (11.4%)

Total

16 14 400 430

 

National Reference Laboratory for Dengue Viruses
- Fem Julia E. Paladin, MSc, PhD (Head, Virology Department)

Confirmation of dengue infection:

 

1997 1998
n = n = 384

Number   of specimen evaluable for HI test (Paired)

30 104

Number of specimen - unpaired/not tested

42

Number of specimen for JE virus isolation

10

Results from serology:

RESULTS

1997 1998
n = 30 n = 104

Definite dengue infection

13 (43.3%) 45 (43.3%)

Presumptive secondary dengue infection

10 (33.3%) 43 (41.3%)

Not dengue

6 (20.0%) 10 (9.6%)

Uninterpretable

1 (3.3%) 6 (5.8%)

 

Influenza Virus Surveillance
- Fem Julia E. Paladin, MSc, PhD (Head, Virology Department)

RESULTS

Number

Influenzae A

12

Rhinovirus

4

Adenovirus

2

Parainfluenzae 3

2

Negative

173

Pending

58

 

ANTIBIOTIC RESISTANCE SURVEILLANCE REPORT
Celia C. Carlos, M.D.
(Unit Head and Chairperson, Committee on Antimicrobial Resistance Surveillance, DOH)

The Philippine National Drug Policy (PNDP) has set as one of its four pillars the promotion of the rational use of drugs, to include the class of antimicrobial agents. This will rest on 3 main elements: setting up of standards for rational drug use, monitoring of usage through surveillance data and performance of remedial action where flaws are identified. The Research Institute for Tropical Medicine  (RITM) has participated in the program by providing quality antimicrobial resistance surveillance data collated and analyzed from sentinel regional and central laboratories.  The project's general objective was to determine the current status and developing trends of bacterial resistance to antimicrobial agents in the country. By doing so, the institute hopes to provide  accurate  and  reliable data for use by national  policy  makers  and clinicians in making decisions on optimal antibiotic usage. The antimicrobial resistance surveillance project’s (ARSP) specific objectives are: 1) To identify and strengthen regional laboratories which will participate in the program, 2) To improve the mechanism for data collection, reporting, collation, analysis and timely feedback, 3) To perform special studies like determination of minimal inhibitory concentrations among bacterial isolates with  unusual susceptibility patterns, 4) To ensure the implementation of quality control procedures and to improve the quality assurance program  in  microbiology among member laboratories, 5) To monitor and evaluate the operations of the program, and 6) To disseminate the results of surveillance to appropriate groups.

The ARSP had thus been undertaking surveillance activities for the last ten years as of 1998 and had achieved the following: 1) providing important susceptibility data at the hospital level and, more importantly, at the national level for some control programs of the Department of Health, 2) introducing an updated computer program for data entry and analysis by the Data Management Unit of RITM, (although currently, the program utilizes the WHONET computer program of the WHO) 3) disseminating generated data through publications and lectures, 4) piloting an external  quality  assessment scheme since 1992  by  sending  "unknowns"  on agar slants to participating laboratories  to  assess the  performance of these laboratories and ensure that data  submitted are accurate and reliable, 5) inclusion of more sentinel sites outside of Metro Manila to include the Celestino Gallares Memorial Hospital (CGMH) in Bohol (as of 1994), Zamboanga Medical Center (ZMC) in Zamboanga  City (as of 1994), the Eastern Visayas Regional Medical Center in Tacloban City (as of October 1998), and the Corazon Locsin Montelibano Memorial Medical Center in Bacolod City (as of October 1998), 6) initiation of a gonococcal surveillance program in 1995, 7) performance of confirmatory tests on bacterial isolates with "unusual"  susceptibility patterns using minimum inhibitory  concentrations (MICs), confirming for instance the first proven methicillin-resistant Staphylococcus aureus isolates in  the  Philippines, 8) implementation of measures to upgrade laboratory performance like  holding  a  three week laboratory  workshop  among  medical technologists  of sentinel sites, carrying out follow-up  visits including distribution of supplies and ATCC reference strains  to almost all  ARSP sentinel sites, distribution  of reference materials like guidelines of  the  National  Committee  for  Clinical  Laboratory Standards (NCCLS), undergoing a two month in-house training in microbiology at  RITM by  four medical technologists to further improve  their  skills, 9) initiation of policy initiatives by  providing  significant inputs  on  a position paper on the rationale of  an  educational strategy addressing the rational use of antibiotics, 10) undertaking research projects on specific organisms known to be causing significant problems of antibiotic resistance like Neisseria gonorrhoeae and Streptococcus pneumoniae, and nosocomial pathogens, 11) initiation of collaborative research and surveillance with organizations like the World Health Organization, Centers for Disease Control (CDC), Atlanta, U.S.A. and Asian Network for Surveillance of Resistant Pathogens (ANSORP), 12) improvement of technical skills of RITM staff through overseas training and participation in external quality assurance programs such as the WHO Quality Control and Proficiency Testing, WHONET Quality Control Program (c/o the CDC), and the WHO Gonococcal Antimicrobial Surveillance Quality Assurance Program, 13) development of standard operating procedures to be used when monitoring ARSP laboratories including a standard form, 14) provision of laboratory supplies to sentinel sites. and 15) provision of expert opinion on anti-infectives for the National Drug Committee and Bureau of Food and Drug.

Specific examples of activities of the ARSP from 1997-98 include publications, training, lectures, and other activities for advocacy related to rational antibiotic use.


© 2001 Research Institute for Tropical Medicine