Background: In preparation of vaccines trials to estimate protection against shigellosis and cholera we conducted a two-year community-based surveillance study in an impoverished area of North Jakarta which provided updated information on the disease burden in the area.

Dengue is an acute febrile disease caused by dengue virus (DENV) that is transmitted by Aedes sp., which causes serious health conditions in many countries. Non-structural protein 1 (NS1) is a co-factor for the RNA replication of this virus, which represents a new strategy for the identification of dengue. Prompt and accurate laboratory diagnosis of this infection is required to assist in patient triage and management, as well as prevent the spread of this infection. In the present study, we tested the potential of surface plasmon resonance (SPR) as a diagnostic tool for dengue infections. NS1 antigen protein was used as an analyte that targets anti-NS1 antibodies, with their interaction resulting in a change in the refractive index. In comparison to currently available gold-standard detection methods [enzyme-linked immunosorbent assay (ELISA) and reverse transcription polymerase chain reaction (RT-PCR)], SPR showed a similar sensitivity but greater efficiency and simplicity in terms of infection detection. Out of 26 samples collected from patients with dengue in Indonesia, SPR was able to correctly identify all 16 positively infected individuals at a lower concentration and a shorter period of time compared to ELISA and RT-PCR. This study revealed that SPR is a promising tool for DENV detection and potentially other diseases as well.

This is a correction of an earlier published article. TextAfter the publication of this work[1], we became aware that the our description of the methods used to identify Shigella spp. did not describe the identification of a subset of Shigella spp. which were untypeable with commercial sera. Additional typing was conducted by Dr. Kaisar A.

Latar belakang. Protein H virus campak sangat penting agar virus dapat menginfeksi sel pejamu. Selain itu, protein H dapat merangsang antibodi spesifik yang dapat menetralisasi virus campak, sehingga virus tidak dapat menginfeksi sel. Bila ada perbedaan sekuens asam amino epitop sel B dan sel T pada protein H antara virus campak liar dan virus vaksin campak, maka vaksin tidak dapat merangsang terbentuknya antibodi protektif.Tujuan. Mengetahui perbedaan sekuens asam amino epitop sel B dan sel T pada protein H antara virus campak liar (G2, G3, dan D9) dan virus vaksin CAM-70, Schwarz dan Edmonston-wt.Metode. Ekstraksi dan amplifikasi gen dilakukan di laboratorium menggunakan teknologi biologi molekuler dan analisis gen dan protein dilakukan menggunakan teknologi bioinformatika.Hasil. Ditemukan perbedaan sekuens asam amino epitop sel T pada protein H antara virus campak liar dan virus Edmonstone-wt, sedangkan antara virus campak liar dan virus vaksin (CAM-70 dan vaksin Schwarz) tidak ditemukan perbedaan. Ditemukan perbedaan sekuens asam amino pada epitop sel B protein H antara virus campak liar dan virus vaksin (CAM-70 dan Schwarz, sedangkan antara CAM-70 dan Schwarz tidak ditemukan perbedaan.Kesimpulan. Tidak ada perbedaan sekuens asam amino epitop sel T antara virus campak liar dan virus vaksin (Schwarz dan CAM-70). Perbedaan ditemukan pada epitop sel B antara virus campak liar dan virus vaksin (CAM-70 dan Schwarz).

Human papillomavirus (HPV) type 52 from a cervical carcinoma in Indonesia was molecularly cloned and characterized. By hybridization with cervical carcinoma DNAs from Indonesian patients, HPV 52 was detected in 3 of 52 cases (6%), whereas HPV 16 and 18 were detected in 8 and 7 cases, respectively (15% and 13%). Sequence analysis revealed that the E6-E7 ORFs contained several DNA binding motifs (Cys-X-X-Cys) like previously sequenced HPVs. The E6 ORF also contained splice donor and acceptor signals, which may allow the expression of E6* protein. The E7 ORF encoded an amino acid sequence that is conserved in some DNA tumor viruses and is involved in binding to Rb protein and in cellular transformation. Transfection of a subgenomic fragment of HPV 52 under the control of a heterologous promoter showed that the E7 ORF alone induced anchorage-independent growth of established rodent cells and immortalized primary rat embryo fibroblasts (REF), and that in cooperation with activated ras, it induced malignant transformation of REF. The E6 ORF also induced, less efficiently, anchorage-independent growth. These results strongly suggest that HPV 52, like HPV 16 and 18, has oncogenic potential.