Professional background

Consultant in infectious diseases and travel medicine at The Hospital for Tropical Diseases at UCLH.

Associate professor in travel medicine at London School of Hygiene and Tropical Medicine.

Member of ; the faculty of Travel medicine RCPSG, the International Expert Committee for Travel Medicine and TAG for NaTHNaC.

Trained in London, Uganda and South Africa .

Runs the short course in travel medicine and teaches the travel medicine component of the DTM&H at LSHTM.

Research interests

The immunosuppressed traveller, late stage HIV and cryptococcosis


Influenza vaccination and interruption of methotrexate in rheumatoid arthritis in the COVID-19 era: an ongoing dilemma: Lancet Rheumatology accepted for publication.

The emerging spectrum of COVID-19 neurology: clinical, radiological and laboratory findings.
Paterson RW, Brown RL, Benjamin L, Nortley R, Wiethoff S, Bharucha T, Jayaseelan DL, Kumar G, Raftopoulos RE, Zambreanu L, Vivekanandam V, Khoo A, Geraldes R, Chinthapalli K, Boyd E, Tuzlali H, Price G, Christofi G, Morrow J, McNamara P, McLoughlin B, Lim ST, Mehta PR, Levee V, Keddie S, Yong W, Trip SA, Foulkes AJM, Hotton G, Miller TD, Everitt AD, Carswell C, Davies NWS, Yoong M, Attwell D, Sreedharan J, Silber E, Schott JM, Chandratheva A, Perry RJ, Simister R, Checkley A, Longley N, Farmer SF, Carletti F, Houlihan C, Thom M, Lunn MP, Spillane J, Howard R, Vincent A, Werring DJ, Hoskote C, Jäger HR, Manji H, Zandi MS. Brain. 2020 Oct 1;143(10):3104-3120. doi: 10.1093/brain/awaa240.

2020 Jul 31;20(1):555.
doi: 10.1186/s12879-020-05227-9.
Determine TB-LAM point-of-care tuberculosis assay predicts poor outcomes in outpatients during their first year of antiretroviral therapy in South Africa
Andrew D Kerkhoff 1 , Nicky Longley 2 3 4 , Nicola Kelly 5 , Anna Cross 5 , Monica Vogt 5 , Robin Wood 5 6 , Sabine Hermans 5 7 , Stephen D Lawn 5 6 , Thomas S Harrison 8
PMID: 32736601
PMCID: PMC7393716
DOI: 10.1186/s12879-020-05227-9

Implementation and Operational Research: Evaluation of a Public-Sector, Provider-Initiated Cryptococcal Antigen Screening and Treatment Program, Western Cape, South Africa.
Vallabhaneni S, Longley N, Smith M, Smith R, Osler M, Kelly N, Cross A, Boulle A, Meintjes G, Govender NP. J Acquir Immune Defic Syndr. 2016 Jun 1;72(2):e37-e42Cryptococcal Antigen Screening in Patients Initiating ART in South Africa: A Prospective Cohort Study

Longley N, Jarvis JN, Meintjes G, Boulle A, Cross A, Kelly N, Govender NP, Bekker LG, Wood R, Harrison TS. Clin Infect Dis. 2016 Mar 1;62(5):581-587AIDS-related mycoses: the way forward

Brown GD, Meintjes G, Kolls JK, Gray C, Horsnell W; Working Group from the EMBO-AIDS Related Mycoses Workshop, Trends Microbiol. 2014 Mar;22(3):107-9.Determinants of mortality in a combined cohort of 501 patients with HIV-associated Cryptococcal meningitis: implications for improving outcomes

Jarvis JN, Bicanic T, Loyse A, Namarika D, Jackson A, Nussbaum JC, Longley N, Muzoora C, Phulusa J, Taseera K, Kanyembe C, Wilson D, Hosseinipour MC, Brouwer AE, Limmathurotsakul D, White N, van der Horst C, Wood R, Meintjes G, Bradley J, Jaffar S, Harrison T. Clin Infect Dis. 2014 Mar;58(5):736-45Cryptococcal immune reconstitution inflammatory syndrome.

Longley N, Harrison TS, Jarvis JN. Curr Opin Infect Dis. 2013 Feb;26(1):26-34Cryptococcal antigen screening and preemptive therapy in patients initiating antiretroviral therapy in resource-limited settings: a proposed algorithm for clinical implementation

Jarvis JN, Govender N, Chiller T, Park B, Longley N, Meintjes G, Bekker LG, Wood R, Lawn SD, Harrison TS J Int Assoc Physicians AIDS Care (Chic). 2012 Nov-Dec;11(6):374-9Short course amphotericin B with high dose fluconazole for HIV-associated cryptococcal meningitis.

Muzoora CK, Kabanda T, Ortu G, Ssentamu J, Hearn P, Mwesigye J, Longley N, Jarvis JN, Jaffar S, Harrison TS. J Infect. 2012 Jan;64(1):76-81Evaluation of a novel point-of-care cryptococcal antigen test on serum, plasma, and urine from patients with HIV-associated cryptococcal meningitis.

Jarvis JN, Percival A, Bauman S, Pelfrey J, Meintjes G, Williams GN, Longley N, Harrison TS, Kozel TR. Clin Infect Dis. 2011 Nov;53(10):1019-23.Routine cryptococcal antigen screening for HIV-infected patients with low CD4+ T-lymphocyte counts: time to implement in South Africa?

Jarvis JN, Harrison TS, Govender N, Lawn SD, Longley N, Bicanic T, Maartens G, Venter F, Bekker LG, Wood R, Meintjes G. S Afr Med J. 2011 Apr;101(4):232-4.Severe Guillain-Barré syndrome following primary infection with varicella zoster virus in an adult.

Cresswell F, Eadie J, Longley N, Macallan D. Int J Infect Dis. 2010 Feb;14(2):e161-3.Independent association between rate of clearance of infection and clinical outcome of HIV-associated cryptococcal meningitis: analysis of a combined cohort of 262 patients.

Bicanic T, Muzoora C, Brouwer AE, Meintjes G, Longley N, Taseera K, Rebe K, Loyse A, Jarvis J, Bekker LG, Wood R, Limmathurotsakul D, Chierakul W, Stepniewska K, White NJ, Jaffar S, Harrison TS. Clin Infect Dis. 2009 Sep 1;49(5):702-9Dose response effect of high-dose fluconazole for HIV-associated cryptococcal meningitis in southwestern Uganda.

Longley N, Muzoora C, Taseera K, Mwesigye J, Rwebembera J, Chakera A, Wall E, Andia I, Jaffar S, Harrison TS. Clin Infect Dis. 2008 Dec 15;47(12):1556-61