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

	© 2001 Research Institute for Tropical Medicine