One of the world’s largest ongoing population-based HIV studies shows major declines in new infections over two decades. But from 2019, progress has stalled – and in some cases begun to reverse. A new study identifies where renewed action could help South Africa regain momentum towards epidemic control.
Tracking Resistance in the Vaginal Microbiome
New research involving CERI’s Prof Jo-Ann Passmore provides new insight into antimicrobial resistance and genomic diversity in a key bacterium associated with bacterial vaginosis.
What Turns Ebola Spillover into an Outbreak?
Why does one encounter with an Ebola virus end with a handful of cases, while another becomes a major outbreak? A new publication argues that answering this requires looking beyond the pathogen to the ecological, social, and structural conditions that shape what happens after spillover.
Using AI to Anticipate Poliovirus Risk
Olivier Adjagba is exploring how deep learning could help public-health teams identify where poliovirus type 2 may be detected next.
Reflections from the ASSAf–Leopoldina workshop on the connections between climate science and mental health, held from 8–10 September 2026 in Pretoria, South Africa.
Addressing pandemic-wide systematic errors in the SARS-CoV-2 phylogeny.
Hunt M, Hinrichs A, Anderson D, Karim L, Dearlove B, Knaggs J, Constantinides B, Fowler P, Rodger G, Street T, Lumley S, Webster H, Sanderson T, Ruis C, Kotzen B, de Maio N, Amenga-Etego L, Amuzu D, Avaro M, Awandare G, Ayivor-Djanie R, Barkham T, Bashton M, Batty E, Bediako Y, De Belder D, Benedetti E, Bergthaler A, Boers S, Campos J, Carr R, Chen Y, Cuba F, Dattero M, Dejnirattisai W, Dilthey A, Duedu K, Endler L, Engelmann I, Francisco N, Fuchs J, Gnimpieba E, Groc S, Gyamfi J, Heemskerk D, Houwaart T, Hsiao N, Huska M, Hölzer M, Iranzadeh A, Jarva H, Jeewandara C, Jolly B, Joseph R, Kant R, Ki K, Kurkela S, Lappalainen M, Lataretu M, Lemieux J, Liu C, Malavige G, Mashe T, Mongkolsapaya J, Montes B, Mora J, Morang’a C, Mvula B, Nagarajan N, Nelson A, Ngoi J, da Paixão J, Panning M, Poklepovich T, Quashie P, Ranasinghe D, Russo M, San J, Sanderson N, Scaria V, Screaton G, Sessions O, Sironen T, Sisay A, Smith D, Smura T, Supasa P, Suphavilai C, Swann J, Tegally H, Tegomoh B, Vapalahti O, Walker A, Wilkinson R, Williamson C, Zair X, Biere B, Dürrwald R, Mache C, Oh D, Schulze J, Wedde M, Wolff T, Fuchs S, Semmler T, Paraskevopoulou S, Kerber R, Kröger S, Haas W, Bode K, Corman V, Erren M, Finzer P, Grosser R, Haffner M, Hermann B, Kiel C, Krumbholz A, Lorentz T, Meinck K, Nitsche A, Petzold M, Schwanz T, Szabados F, Tewald F, Tiemann C, de Oliveira T, Peto T, Crook D, Corbett-Detig R, Iqbal Z, Nature Methods (2026), 23:653-662.
Tracing the spatial origins and spread of SARS-CoV-2 Omicron lineages in South Africa.
Dor G, Wilkinson E, Martin DP, Moir M, Tshiabuila D, Kekana D, Ntozini B, Joseph R, Iranzadeh A, Nyaga MM, Goedhals D, Maponga T, Maritz J, Laguda-Akingba O, Ramphal Y, MacIntyre C, Chabuka L, Pillay S, Giandhari J, Baxter C, Hsiao NY, Preiser W, Bhiman JN, Davies MA, Venter M, Treurnicht FK, Wolter N, Williamson C, von Gottberg A, Lessells R, Tegally H, de Oliveira T, Nature Communications (2025), 28;16(1):4937. doi: 10.1038/s41467-025-60081-0:.
Genomic Surveillance of Climate-Amplified Cholera Outbreak, Malawi, 2022–2023.
Chabuka L, Choga W, Mavian C, Moir M, Morgenstern C, Tegaly H, Sharma A, Wilkinson E, Naidoo Y, Inward R, Bhatt S, WilliamWint G, Khan K, Bogoch I, Kraemer M, Lourenço J, Baxter C, Tagliamonte M, Salemi M, Lessells R, Mitambo C, Chitatanga R, Bitilinyu-Bango J, Chiwaula M, Chavula Y, Bukhu M, Manda H, Chitenje M, Malolo I, Mwanyongo A, Mvula B, Nyenje M, de Oliveira T, Kagoli M, Emerging Infectious Diseases (2025), 31(6):. doi: 10.3201/eid3106.240930.:.
Importance of outbreak response research in bridging knowledge gaps on emerging infectious diseases.
Breiman R, Osoro E, Reithinger R, Wang D, Diamond M, Van Voorhis W, Wasserheit J, Rabinowitz P, Mboup S, Hemingway-Foday J, de Oliveira T, Boon A, Schieffelin J, Sempowski G, Moody M, Vasilakis N, Hanley K, Nasimiyu C, Situma S, Ngere I, Kyobe Bosa H, Nyakarahuka L, Bakamutumaho B, Woodson S, Njenga M, BMJ Global Health (2025), 10(6):e018297. doi: 10.1136/bmjgh-2024-018297.:.
Artificial intelligence for modelling infectious disease epidemics.
Kraemer M, Tsui J, Chang S, Lytras S, Khurana M, Vanderslott S, Bajaj S, Scheidwasser N, Curran-Sebastian J, Semenova E, Zhang M, Unwin H, Watson O, Mills C, Dasgupta A, Ferretti L, Scarpino S, Koua E, Morgan O, Tegally H, Paquet U, Moutsianas L, Fraser C, Ferguson N, Topol E, Duchêne D, Stadler T, Kingori P, Parker M, Dominici F, Shadbolt N, Suchard M, Ratmann O, Flaxman S, Holmes E, Gomez-Rodriguez M, Schölkopf B, Donnelly C, Pybus O, Cauchemez S, Bhatt S, Nature (2025), :.
Spatiotemporal disease suitability prediction for Oropouche virus and the role of vectors across the Americas.
Poongavanan J, Dunaiski M, D’or G, Kraemer M, Giovanetti M, Lim A, Brady O, Baxter C, Fonseca V, Alcantara L, de Oliveira T, Tegally H, medRxiv (2025), doi: 10.1101/2025.02.28.25323068.:.
Characterization of SARS-CoV-2 intrahost genetic evolution in vaccinated and non-vaccinated patients from the Kenyan population.
Lugano D, Mwangi K, Mware B, Kibet G, Osiany S, Kiritu E, Dobi P, Muli C, Njeru R, de Oliveira T, Njenga M, Routh A, Oyola S, medRxiv (2025), doi: 10.1101/2025.03.03.25323296.:.
COVID-19 | News sub-variant being monitored closely
By: Tulio De Oliveira and CERI and KRISP teams
Genome Detective Coronavirus Typing Tool
Genome Detective Coronavirus Typing Tool for rapid identification and characterization of novel coronavirus genomes
Genome Detective Chikungunya Typing Tool
This is the first version of the Chikungunya typing tool, which uses phylogenetic analysis to identify the species and genotype of the virus.
Genome Detective Zika Typing Tool
This is the first version of the Zika typing tool, which uses phylogenetic analysis to identify the species and genotype of the virus.
Genome Detective Yellow Fever Virus Typing Tool
This is the first version of the Yellow Fever typing tool, which uses phylogenetic analysis to identify the species and genotype of the virus.
Genome Detective Dengue Virus Typing Tool
This is a beta version of our Dengue Virus Typing tool. For the mean time, this tool should be used for evaluation only. Please send feedback to Tulio de Oliveira.
This is the first version of our Arbovirus typing tool for Chikungunya, Dengue, Yellow Fever and Zika
REGA HIV Subtyping Tool V3 - Belgium Mirror
Phylogenetic tool to identify the HIV-1 subtypes and recombinants. Query sequences are analysed for recombination using bootscanning methods. The version 3 contains new CRFs (CRF01_AE to CRF47_BF).
KRISP has been created by the coordinated effort of the University of KwaZulu-Natal (UKZN), the Technology Innovation Agency (TIA) and the South African Medical Research Countil (SAMRC).
Location: K-RITH Tower Building
Nelson R Mandela School of Medicine, UKZN
719 Umbilo Road, Durban, South Africa.
Director: Prof. Tulio de Oliveira