About Yajna Ramphal

Email: yajna.ramphal@gmail.com
Genomics Africa fellow - I had joined CERI- KRISP as a research intern in 2021 as part of the Next Generation Sequencing lab team, as of 2022 I will be pursuing my postgraduate degree in Computational Biology and Bioinformatics at the University of Stellenbosch. My interests include the vast and expanding field of data science, epidemiology, epigenetics, gene regulation and genomic research.

PUBLICATIONS

The evolving SARS-CoV-2 epidemic in Africa: Insights from rapidly expanding genomic surveillance.
Tegally H, San JE, Cotten M, Moir M, Tegomoh B, Mboowa G, Martin DP, Baxter C, Lambisia AW, Diallo A, Amoako DG, Diagne MM, Sisay A, Zekri AN, Gueye AS, Sangare AK, Ouedraogo AS, Sow A, Musa AO, Sesay AK, Abias AG, Elzagheid AI, Lagare A, Kemi AS, Abar AE, Johnson AA, Fowotade A, Oluwapelumi AO, Amuri AA, Juru A, Kandeil A, Mostafa A, Rebai A, Sayed A, Kazeem A, Balde A, Christoffels A, Trotter AJ, Campbell A, Keita AK, Kone A, Bouzid A, Souissi A, Agweyu A, Naguib A, Gutierrez AV, Nkeshimana A, Page AJ, Yadouleton A, Vinze A, Happi AN, Chouikha A, Iranzadeh A, Maharaj A, Batchi-Bouyou AL, Ismail A, Sylverken AA, Goba A, Femi A, Sijuwola AE, Marycelin B, Salako BL, Oderinde BS, Bolajoko B, Diarra B, Herring BL, Tsofa B, Lekana-Douki B, Mvula B, Njanpop-Lafourcade BM, Marondera BT, Khaireh BA, Kouriba B, Adu B, Pool B, McInnis B, Brook C, Williamson C, Nduwimana C, Anscombe C, Pratt CB, Scheepers C, Akoua-Koffi CG, Agoti CN, Mapanguy CM, Loucoubar C, Onwuamah CK, Ihekweazu C, Malaka CN, Peyrefitte C, Grace C, Omoruyi CE, Rafaï CD, Morang'a CM, Erameh C, Lule DB, Bridges DJ, Mukadi-Bamuleka D, Park D, Rasmussen DA, Baker D, Nokes DJ, Ssemwanga D, Tshiabuila D, Amuzu DSY, Goedhals D, Grant DS, Omuoyo DO, Maruapula D, Wanjohi DW, Foster-Nyarko E, Lusamaki EK, Simulundu E, Ong'era EM, Ngabana EN, Abworo EO, Otieno E, Shumba E, Barasa E, Ahmed EB, Ahmed EA, Lokilo E, Mukantwari E, Philomena E, Belarbi E, Simon-Loriere E, Anoh EA, Manuel E, Leendertz F, Taweh FM, Wasfi F, Abdelmoula F, Takawira FT, Derrar F, Ajogbasile FV, Treurnicht F, Onikepe F, Ntoumi F, Muyembe FM, Ragomzingba FEZ, Dratibi FA, Iyanu FA, Mbunsu GK, Thilliez G, Kay GL, Akpede GO, van Zyl GU, Awandare GA, Kpeli GS, Schubert G, Maphalala GP, Ranaivoson HC, Omunakwe HE, Onywera H, Abe H, Karray H, Nansumba H, Triki H, Kadjo HAA, Elgahzaly H, Gumbo H, Mathieu H, Kavunga-Membo H, Smeti I, Olawoye IB, Adetifa IMO, Odia I, Ben Boubaker IB, Mohammad IA, Ssewanyana I, Wurie I, Konstantinus IS, Halatoko JWA, Ayei J, Sonoo J, Makangara JC, Tamfum JM, Heraud JM, Shaffer JG, Giandhari J, Musyoki J, Nkurunziza J, Uwanibe JN, Bhiman JN, Yasuda J, Morais J, Kiconco J, Sandi JD, Huddleston J, Odoom JK, Morobe JM, Gyapong JO, Kayiwa JT, Okolie JC, Xavier JS, Gyamfi J, Wamala JF, Bonney JHK, Nyandwi J, Everatt J, Nakaseegu J, Ngoi JM, Namulondo J, Oguzie JU, Andeko JC, Lutwama JJ, Mogga JJH, O'Grady J, Siddle KJ, Victoir K, Adeyemi KT, Tumedi KA, Carvalho KS, Mohammed KS, Dellagi K, Musonda KG, Duedu KO, Fki-Berrajah L, Singh L, Kepler LM, Biscornet L, de Oliveira Martins L, Chabuka L, Olubayo L, Ojok LD, Deng LL, Ochola-Oyier LI, Tyers L, Mine M, Ramuth M, Mastouri M, ElHefnawi M, Mbanne M, Matsheka MI, Kebabonye M, Diop M, Momoh M, Lima Mendonça MDL, Venter M, Paye MF, Faye M, Nyaga MM, Mareka M, Damaris MM, Mburu MW, Mpina MG, Owusu M, Wiley MR, Tatfeng MY, Ayekaba MO, Abouelhoda M, Beloufa MA, Seadawy MG, Khalifa MK, Matobo MM, Kane M, Salou M, Mbulawa MB, Mwenda M, Allam M, Phan MVT, Abid N, Rujeni N, Abuzaid N, Ismael N, Elguindy N, Top NM, Dia N, Mabunda N, Hsiao NY, Silochi NB, Francisco NM, Saasa N, Bbosa N, Murunga N, Gumede N, Wolter N, Sitharam N, Ndodo N, Ajayi NA, Tordo N, Mbhele N, Razanajatovo NH, Iguosadolo N, Mba N, Kingsley OC, Sylvanus O, Femi O, Adewumi OM, Testimony O, Ogunsanya OA, Fakayode O, Ogah OE, Oludayo OE, Faye O, Smith-Lawrence P, Ondoa P, Combe P, Nabisubi P, Semanda P, Oluniyi PE, Arnaldo P, Quashie PK, Okokhere PO, Bejon P, Dussart P, Bester PA, Mbala PK, Kaleebu P, Abechi P, El-Shesheny R, Joseph R, Aziz RK, Essomba RG, Ayivor-Djanie R, Njouom R, Phillips RO, Gorman R, Kingsley RA, Neto Rodrigues RMDESA, Audu RA, Carr RAA, Gargouri S, Masmoudi S, Bootsma S, Sankhe S, Mohamed SI, Femi S, Mhalla S, Hosch S, Kassim SK, Metha S, Trabelsi S, Agwa SH, Mwangi SW, Doumbia S, Makiala-Mandanda S, Aryeetey S, Ahmed SS, Ahmed SM, Elhamoumi S, Moyo S, Lutucuta S, Gaseitsiwe S, Jalloh S, Andriamandimby SF, Oguntope S, Grayo S, Lekana-Douki S, Prosolek S, Ouangraoua S, van Wyk S, Schaffner SF, Kanyerezi S, Ahuka-Mundeke S, Rudder S, Pillay S, Nabadda S, Behillil S, Budiaki SL, van der Werf S, Mashe T, Mohale T, Le-Viet T, Velavan TP, Schindler T, Maponga TG, Bedford T, Anyaneji UJ, Chinedu U, Ramphal U, George UE, Enouf V, Nene V, Gorova V, Roshdy WH, Karim WA, Ampofo WK, Preiser W, Choga WT, Ahmed YA, Ramphal Y, Bediako Y, Naidoo Y, Butera Y, de Laurent ZR; Africa Pathogen Genomics Initiative (Africa PGI), Ouma AEO, von Gottberg A, Githinji G, Moeti M, Tomori O, Sabeti PC, Sall AA, Oyola SO, Tebeje YK, Tessema SK, de Oliveira T, Happi C, Lessells R, Nkengasong J, Wilkinson E, Science (2022), eabq5358. doi: 10.1126/science.abq5358:.

Impact of intra-host immune adaptations on the evolution of SARS-CoV-2 S protein among individuals with SARS-CoV-2 infections in South Africa, 2020 to 2022..
Subramoney K, Mtileni N, Davis A, Giandhari J, Naidoo Y, Ramphal Y, Pillay S, Ramphal U, Tegally H, Wilkinson E, Simane A, Reddy B, Mashishi B, Mbenenge N, de Oliveira T, Fielding B, Treurnicht F, Authorea Preprints (2022), DOI: 10.22541/au.166305249.90395426/v1 :.

Identification of SARS-CoV-2 Omicron variant using spike gene target failure and genotyping assays, Gauteng, South Africa, 2021.
Subramoney K, Mtileni N, Bharuthram A, Davis A, Kalenga B, Rikhotso M, Maphahlele M, Giandhari J, Naidoo Y, Pillay S, Ramphal U, Ramphal Y, Tegally H, Wilkinson E, Mohale T, Ismail A, Mashishi B, Mbenenge N, de Oliveira T, Makatini Z, Fielding BC, Treurnicht FK, J Med Virol. (2022), 4(8):3676-3684. doi: 10.1002/jmv.27797:.

Omicron infection enhances Delta antibody immunity in vaccinated persons.
Khan K, Karim F, Cele S, Reedoy K, San EJ, Lustig G, Tegally H, Rosenberg Y, Bernstein M, Jule Z, Ganga Y, Ngcobo N, Mazibuko M, Mthabela N, Mhlane Z, Mbatha N, Miya Y, Giandhari J, Ramphal Y, Naidoo T, Sivro A, Samsunder N, Kharsany A, Amoako D, Bhiman J, Manickchund N, Karim Q, Magula N, Abdool Karim SS, Gray G, Hanekom W, von Gottberg A, Milo R, Gosnell B, Lessells R, Moore P, de Olveira T, Moosa M-Y S, Sigal A, Nature (2022), https://doi.org/10.1038/s41586-022-04830-x:.

Rapid Replacement of SARS-CoV-2 Variants by Delta and Subsequent Arrival of Omicron, Uganda, 2021.
Bbosa N, Ssemwanga D, Namagembe H, Kiiza R, Kiconco J, Kayiwa J, Lutalo T, Lutwama J, Ssekagiri A, Ssewanyana I, Nabadda S, Kyobe-Bbosa H, Giandhari J, Pillay S, Ramphal U, Ramphal Y, Naidoo Y, Tshiabuila D, Tegally H, San EJ, Wilkinson E, de Oliveira T, Kaleebu P, Emerg Infect Dis (2022), doi: 10.3201/eid2805.220121:.

Comparison of SARS-CoV-2 sequencing using the ONT GridION and the Illumina MiSeq.
Tshiabuila D, Giandhari J, Pillay S, Ramphal U, Ramphal Y, Maharaj A, Anyaneji UJ, Naidoo Y, Tegally H, San EJ, Wilkinson E, Lessells R, de Oliveira T, Research Square (2022), https://doi.org/10.21203/rs.3.rs-1249711/v1:.

Omicron infection of vaccinated individuals enhances neutralizing immunity against the Delta variant. .
Khan K, Karim F, Cele S, San JE, Lustig G, Tegally H, Rosenberg Y, Bernstein M, Ganga Y, Jule Z, Reedoy K, Ngcobo N, Miya Y, Mazibuko M, Mthabela N, Mhlane Z, Mbatha N, Giandhari J, Ramphal Y, Naidoo T, Manickchund N, Magula N, Karim SA, Gray G, Hanekom W, von Gottberg A, Milo R, Gosnell B, Lessells R, de Oliveira T, Moore P, Moosa YS, Sigal A., medRxiv (2022), 2021.12.27.21268439. doi: 10.1101/2021.12.27.21268439:.

Rapid epidemic expansion of the SARS-CoV-2 Omicron variant in southern Africa.
Viana R, Moyo S, Amoako DG, Tegally H, Scheepers C, Althaus CL, Anyaneji UJ, Bester PA, Boni MF, Chand M, Choga WT, Colquhoun R, Davids M, Deforche K, Doolabh D, du Plessis L, Engelbrecht S, Everatt J, Giandhari J, Giovanetti M, Hardie D, Hill V, Hsiao NY, Iranzadeh A, Ismail A, Joseph C, Joseph R, Koopile L, Kosakovsky Pond SL, Kraemer MUG, Kuate-Lere L, Laguda-Akingba O, Lesetedi-Mafoko O, Lessells RJ, Lockman S, Lucaci AG, Maharaj A, Mahlangu B, Maponga T, Mahlakwane K, Makatini Z, Marais G, Maruapula D, Masupu K, Matshaba M, Mayaphi S, Mbhele N, Mbulawa MB, Mendes A, Mlisana K, Mnguni A, Mohale T, Moir M, Moruisi K, Mosepele M, Motsatsi G, Motswaledi MS, Mphoyakgosi T, Msomi N, Mwangi PN, Naidoo Y, Ntuli N, Nyaga M, Olubayo L, Pillay S, Radibe B, Ramphal Y, Ramphal U, San JE, Scott L, Shapiro R, Singh L, Smith-Lawrence P, Stevens W, Strydom A, Subramoney K, Tebeila N, Tshiabuila D, Tsui J, van Wyk S, Weaver S, Wibmer CK, Wilkinson E, Wolter N, Zarebski AE, Zuze B, Goedhals D, Preiser W, Treurnicht F, Venter M, Williamson C, Pybus OG, Bhiman J, Glass A, Martin DP, Rambaut A, Gaseitsiwe S, von Gottberg A, de Oliveira T, Nature (2022), doi: 10.1038/s41586-022-04411-y:.

Rapid replacement of the Beta variant by the Delta variant in South Africa.
Tegally H, Wilkinson E, Althaus C, Giovanetti M, San J, Giandhari J, Pillay S, Naidoo Y, Ramphal U, Msomi N, Mlisana K, Amoako D, Everatt J, Mohale T, Nguni A, Mahlangu B, Ntuli N, Khumalo Z, Makatini Z, Wolter N, Scheepers C, Ismail A, Doolabh D, Joseph R, Strydom A, Mendes A, Davids M, Mayaphi S, Ramphal Y, Maharaj A, Karim W, Tshiabuila D, Anyaneji U, Singh L, Engelbrecht S, Fonseca V, Marais K, Korsman S, Hardie D, Hsiao N, Maponga T, van Zyl G, Marais G, Iranzadeh A, Martin D, Alcantara L, Bester P, Nyaga M, Subramoney K, Treurnicht F, Venter M, Goedhals D, Preiser W, Bhiman J, vonGottberg A, Williamson C, Lessells R, de Oliveira T, medRxiv (2021), MEDRXIV-2021-264018v1:.