HIV Dynamics

We work closely with the Rakai Health Sciences Program and other collaborators to study HIV transmission in sub-Saharan Africa

We work on a variety of epidemiological studies focused on HIV transmission dynamics and the impact of prevention interventions. Our research largely takes place in Sub-Saharan Africa but we have also collaborated on domestic initatives.

We closely collaborate with the Rakai Health Sciences Program (RHSP) in Uganda, which is one of the leading HIV research institutions in Sub-Saharan Africa. Rakai, located in Southwest Uganda, is where the first AIDS cases were identified in Eastern Africa and today it remains one of the highest-burden districts in the region with an overall HIV prevalence of ~14%. However, within Rakai there is substantial geographic heterogeneity in HIV prevalence ranging from 9-43% at the community-level. We currently support NIH and BMGF initiatives to understand the role of extremely-high-prevalence communities (i.e. "geographic hotspots") and other key populations within the broader regional epidemic with the overarching goal of informing targeting HIV prevention initiatives under PEPFAR Phase III. Our work with RHSP includes dynamic HIV modelling and viral phylogenetics conducted in collaboration with the PANGEA-HIV consortium and researchers (and friends!) at Oxford University and Imperial College London in the UK.

We also have an iniative supported by the Johns Hopkins Center for AIDS Research/NIH to use network models and viral phylogenetics to inform real-time interventions to prevent HIV among young men who have sex with men in Baltimore City, Maryland.

Updates #HIV

1 year 7 months ago

Congratulations to @KateGrabowski and the Rakai team on there important paper on #HIV incidence declines in Rakai in @NEJM
2 years 2 months ago

Congratulations to @katierisher on her exceptional defense of her dissertation today. #HIV
2 years 7 months ago

What can phylogenetics tell us about #HIV transmission? @KateGrabowski and @JustinLessler comment in @TheLancetHIV. https://t.co/b2Pc28yFHG
2 years 7 months ago

RT @KateGrabowski: Congrats to Jess Prodger & Rakai team on new paper looking at inflammation and HIV risk in men! @JHIDDynamics #HIV https://t.co/PFeVseXVtK
3 years 5 days ago

Congrats to @KateGrabowski and the whole RHSP team on the their paper in Lancet HIV. With a commentary no less! https://t.co/cDgxIDYvA7 #HIV
3 years 1 week ago

Congrats to @KateGrabowski, Allison A., Errol F., others on @HopkinsCFAR award to study HIV transmission in Baltimore w/phylogenetics! #HIV

Publications

1 Mar 2019

Yield and Efficiency of Novel Intensified Tuberculosis Case-Finding Algorithms for People Living with HIV

Yoon C, Semitala FC, Asege L, Katende J, Mwebe S, Andama AO, Atuhumuza E, Nakaye M, Armstrong DT, Dowdy DW, McCulloch CE, Kamya M, Cattamanchi A

Am J Respir Crit Care Med, 2019: 199(5): 643-650, 10.1164/rccm.201803-0490OC

2 Apr 2019

Integrated HIV testing, prevention, and treatment intervention for key populations in India: a cluster-randomised trial

Solomon SS, Solomon S, McFall AM, Srikrishnan AK, Anand S, Verma V, Vasudevan CK, Balakrishnan P, Ogburn EL, Moulton LH, Kumar MS, Sachdeva KS, Laeyendecker O, Celentano DD, Lucas GM, Mehta SH; Indian National Collaboration on AIDS Study.

Lancet HIV, 2019: 10.1016/S2352-3018(19)30034-7

29 Mar 2019

The benefit of immediate compared to deferred ART on CD4+ Cell count recovery in early HIV infection

Sharma S, Schlusser KE, Torre P, Tambussi G, Draenert R, Pinto AN, Metcalf JA, Neaton JD, Laeyendecker O; INSIGHT START Study Group.

AIDS, 2019: 10.1097/QAD.0000000000002219

29 Mar 2019

Inferring HIV-1 transmission networks and sources of epidemic spread in Africa with deep-sequence phylogenetic analysis

Ratmann O, Grabowski MK, Hall M, Golubchik T, Wymant C, Abeler-Dörner L, Bonsall D, Hoppe A, Brown AL, de Oliveira T, Gall A, Kellam P, Pillay D, Kagaayi J, Kigozi G, Quinn TC, Wawer MJ, Laeyendecker O, Serwadda D, Gray RH, Fraser C; PANGEA Consortium and Rakai Health Sciences Program.

Nat Commun, 2019: 10(1): 1411, 10.1038/s41467-019-09139-4

12 Feb 2019

Cross-sectional HIV Incidence Estimation Accounting for Heterogeneity Across Communities

Xu Y, Laeyendecker O, Wang R

Biometrics, 2019: 10.1111/biom.13046

24 Apr 2019

Operational characteristics of antiretroviral therapy clinics in Zambia: a time and motion analysis

Tampi RP, Tembo T, Mukumba-Mwenechanya M, Sharma A, Dowdy DW, Holmes CB, Bolton-Moore C, Sikazwe I, Tucker A, Sohn H

BMC Health Serv Res, 2019: 19(1): 244, 10.1186/s12913-019-4096-z

HIV viral suppression and geospatial patterns of HIV antiretroviral therapy treatment facility use in Rakai, Uganda.

Billioux VG, Grabowski MK, Ssekasanvu J, Reynolds SJ, Berman A, Bazaale J, Patel EU, Bugos E, Ndyanabo A, Kisakye A, Kagaayi J, Gray RH, Nakigozi G, Ssekubugu R, Nalugoda F, Serwadda D, Wawer MJ, Chang LW.

AIDS, 2018: 10.1097/QAD.0000000000001761

The validity of self-reported antiretroviral use in persons living with HIV: a population-based study.

Grabowski MK, Reynolds SJ, Kagaayi J, Gray RH, Clarke W, Chang LW, Nakigozi G, Laeyndecker O, Redd AD, Billioux V, Ssekubugu R, Nalugoda F, Wawer MJ, Serwadda D, Quinn TC, Tobian AAR.

AIDS, 2018: 32(3): 363-369, 10.1097/QAD.0000000000001706

Infectious Disease Dynamics

HIV Dynamics

HIV Dynamics

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HIV Dynamics

HIV Dynamics

Updates #HIV

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