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Dr Lloyd Chapman

Lecturer in Mathematics and Statistics

  1. 2024
  2. Published

    Inferring the regional distribution of Visceral Leishmaniasis incidence from data at different spatial scales

    Nightingale, E. S., Subramanian, S., Schwarzer, A. R., Chapman, L. A. C., Jambulingam, P., Cameron, M. M., Brady, O. J., Medley, G. F. & Lucas, T. C. D., 20/11/2024, In: communications medicine. 4, 1, 240.

    Research output: Contribution to Journal/MagazineJournal articlepeer-review

  3. Published

    Demographic characteristics and clinical features of patients presenting with different forms of cutaneous leishmaniasis, in Lay Gayint, Northern Ethiopia

    Yizengaw, E., Gashaw, B., Yimer, M., Takele, Y., Nibret, E., Yismaw, G., Cruz Cervera, E., Ejigu, K., Tamiru, D., Munshea, A., Müller, I., Weller, R., Cotton, J. A., Chapman, L. A. C. & Kropf, P., 15/08/2024, In: PLoS Neglected Tropical Diseases. 18, 8, e0012409.

    Research output: Contribution to Journal/MagazineJournal articlepeer-review

  4. Published

    The Hidden Hand of Asymptomatic Infection Hinders Control of Neglected Tropical Diseases: A Modeling Analysis

    Rock, K. S., Chapman, L. A. C., Dobson, A. P., Adams, E. R. & Hollingsworth, T. D., 15/05/2024, In: Clinical infectious diseases : an official publication of the Infectious Diseases Society of America. 78, Suppl. 2, p. S175-S182 8 p.

    Research output: Contribution to Journal/MagazineJournal articlepeer-review

  5. Published

    Demographic characteristics and prevalence of asymptomatic Leishmania donovani infection in migrant workers working in an endemic area in Northwest Ethiopia

    Yimer, M., Takele, Y., Yizengaw, E., Nibret, E., Sumova, P., Volf, P., Yismaw, G., Alehegn, M., Rowan, A., Müller, I., Cotton, J. A., Chapman, L. A. C. & Kropf, P., 9/04/2024, In: Frontiers in Epidemiology. 4

    Research output: Contribution to Journal/MagazineJournal articlepeer-review

  6. Published

    Predicting subnational incidence of COVID-19 cases and deaths in EU countries

    Robert, A., Chapman, L. A. C., Grah, R., Niehus, R., Sandmann, F., Prasse, B., Funk, S. & Kucharski, A. J., 14/02/2024, In: BMC Infectious Diseases. 24, 1, 204.

    Research output: Contribution to Journal/MagazineJournal articlepeer-review

  7. Published

    Combined analyses of within-host SARS-CoV-2 viral kinetics and information on past exposures to the virus in a human cohort identifies intrinsic differences of Omicron and Delta variants

    Russell, T. W., Townsley, H., Abbott, S., Hellewell, J., Carr, E. J., Chapman, L. A. C., Pung, R., Quilty, B. J., Hodgson, D., Fowler, A. S., Adams, L., Bailey, C., Mears, H. V., Harvey, R., Clayton, B., O’Reilly, N., Ngai, Y., Nicod, J., Gamblin, S. & Williams, B. & 6 others, Gandhi, S., Swanton, C., Beale, R., Bauer, D. L. V., Wall, E. C. & Kucharski, A. J., 30/01/2024, In: Plos Biology. 22, 1, e3002463.

    Research output: Contribution to Journal/MagazineJournal articlepeer-review

  8. 2023
  9. Published

    Impact of vaccinations, boosters and lockdowns on COVID-19 waves in French Polynesia

    Chapman, L. A. C., Aubry, M., Maset, N., Russell, T. W., Knock, E. S., Lees, J. A., Mallet, H.-P., Cao-Lormeau, V.-M. & Kucharski, A. J., 13/11/2023, In: Nature Communications. 14, 1, 7330.

    Research output: Contribution to Journal/MagazineJournal articlepeer-review

  10. Published

    Cutaneous leishmaniasis in a newly established treatment centre in the Lay Gayint district, Northwest Ethiopia

    Yizengaw, E., Nibret, E., Yismaw, G., Gashaw, B., Tamiru, D., Munshea, A., Takele, Y., Müller, I., Chapman, L., Weller, R., Cotton, J. A. & Kropf, P., 31/08/2023, In: Skin Health and Disease. 3, 4, e229.

    Research output: Contribution to Journal/MagazineJournal articlepeer-review

  11. 2022
  12. Published

    Modelling the medium-term dynamics of SARS-CoV-2 transmission in England in the Omicron era

    Centre for Mathematical Modelling of Infectious Diseases COVID-19 working group, 31/12/2022, In: Nature Communications. 13, 1, 4879.

    Research output: Contribution to Journal/MagazineJournal articlepeer-review

  13. Published

    Impact of intensified control on visceral leishmaniasis in a highly-endemic district of Bihar, India: an interrupted time series analysis

    Kumar, V., Siddiqui, N. A., Pollington, T. M., Mandal, R., Das, S., Kesari, S., Das, V. R., Pandey, K., Hollingsworth, T. D., Chapman, L. A. C. & Das, P., 30/06/2022, In: Epidemics. 39, 8 p., 100562.

    Research output: Contribution to Journal/MagazineJournal articlepeer-review

  14. Published

    Risk factor targeting for vaccine prioritization during the COVID-19 pandemic

    Chapman, L. A. C., Shukla, P., Rodríguez-Barraquer, I., Shete, P. B., León, T. M., Bibbins-Domingo, K., Rutherford, G. W., Schechter, R. & Lo, N. C., 23/02/2022, In: Scientific Reports. 12, 12 p., 3055.

    Research output: Contribution to Journal/MagazineJournal articlepeer-review

  15. Published

    Unexposed populations and potential COVID-19 hospitalisations and deaths in European countries as per data up to 21 November 2021

    Chapman, L. A. C., Barnard, R. C., Russell, T. W., Abbott, S., Zandvoort, K. V., Davies, N. G. & Kucharski, A. J., 6/01/2022, In: Eurosurveillance. 27, 1, 8 p., 2101038.

    Research output: Contribution to Journal/MagazineJournal articlepeer-review

  16. 2021
  17. Published

    Frequency of Routine Testing for Coronavirus Disease 2019 (COVID-19) in High-risk Healthcare Environments to Reduce Outbreaks

    Chin, E. T., Huynh, B. Q., Chapman, L. A. C., Murrill, M., Basu, S. & Lo, N. C., 1/11/2021, In: Clinical Infectious Diseases. 73, 9, p. E3127-E3129 3 p.

    Research output: Contribution to Journal/MagazineJournal articlepeer-review

  18. Published

    Routine asymptomatic testing strategies for airline travel during the COVID-19 pandemic: a simulation study

    Kiang, M. V., Chin, E. T., Huynh, B. Q., Chapman, L. A. C., Rodríguez-Barraquer, I., Greenhouse, B., Rutherford, G. W., Bibbins-Domingo, K., Havlir, D., Basu, S. & Lo, N. C., 31/07/2021, In: The Lancet Infectious Diseases. 21, 7, p. 929-938 10 p.

    Research output: Contribution to Journal/MagazineJournal articlepeer-review

  19. Published

    Comparison of infection control strategies to reduce COVID-19 outbreaks in homeless shelters in the United States: a simulation study

    Chapman, L. A. C., Kushel, M., Cox, S. N., Scarborough, A., Cawley, C., Nguyen, T. Q., Rodriguez-Barraquer, I., Greenhouse, B., Imbert, E. & Lo, N. C., 7/05/2021, In: BMC Medicine. 19, 13 p., 116.

    Research output: Contribution to Journal/MagazineJournal articlepeer-review

  20. Published

    Developments in statistical inference when assessing spatiotemporal disease clustering with the tau statistic

    Pollington, T. M., Tildesley, M. J., Hollingsworth, T. D. & Chapman, L. A. C., 30/04/2021, In: Spatial Statistics. 42, 15 p., 100438.

    Research output: Contribution to Journal/MagazineJournal articlepeer-review

  21. Published

    Development and Evaluation of Active Case Detection Methods to Support Visceral Leishmaniasis Elimination in India

    Dubey, P., Das, A., Priyamvada, K., Bindroo, J., Mahapatra, T., Mishra, P. K., Kumar, A., Franco, A. O., Rooj, B., Sinha, B., Pradhan, S., Banerjee, I., Kumar, M., Bano, N., Kumar, C., Prasad, C., Chakraborty, P., Kumar, R., Kumar, N. & Kumar, A. & 16 others, Singh, A. K., Kundan, K., Babu, S., Shah, H., Karthick, M., Roy, N., Gill, N. K., Dwivedi, S., Chaudhuri, I., Hightower, A. W., Chapman, L. A. C., Singh, C., Sharma, M. P., Dhingra, N., Bern, C. & Srikantiah, S., 24/03/2021, In: Frontiers in cellular and infection microbiology. 11, 648903.

    Research output: Contribution to Journal/MagazineJournal articlepeer-review

  22. Published

    Optimizing Village-Level Targeting of Active Case Detection to Support Visceral Leishmaniasis Elimination in India

    Bindroo, J., Priyamvada, K., Chapman, L. A. C., Mahapatra, T., Sinha, B., Banerjee, I., Mishra, P. K., Rooj, B., Kundan, K., Roy, N., Gill, N. K., Hightower, A., Sharma, M. P., Dhingra, N., Bern, C. & Srikantiah, S., 24/03/2021, In: Frontiers in cellular and infection microbiology. 11, 648847.

    Research output: Contribution to Journal/MagazineJournal articlepeer-review

  23. Published

    Visceral leishmaniasis outbreaks in Bihar: community-level investigations in the context of elimination of kala-azar as a public health problem

    Priyamvada, K., Bindroo, J., Sharma, M. P., Chapman, L. A. C., Dubey, P., Mahapatra, T., Hightower, A. W., Bern, C. & Srikantiah, S., 15/01/2021, In: Parasites and Vectors. 14, 1, 52.

    Research output: Contribution to Journal/MagazineJournal articlepeer-review

  24. 2020
  25. Published

    Inferring transmission trees to guide targeting of interventions against visceral leishmaniasis and post-kala-azar dermal leishmaniasis

    Chapman, L. A. C., Spencer, S. E. F., Pollington, T. M., Jewell, C. P., Mondal, D., Alvar, J., Hollingsworth, T. D., Cameron, M. M., Bern, C. & Medley, G. F., 13/10/2020, In: Proceedings of the National Academy of Sciences of the United States of America. 117, 41, p. 25742-25750 9 p.

    Research output: Contribution to Journal/MagazineJournal articlepeer-review

  26. Published

    A spatio-temporal approach to short-term prediction of visceral leishmaniasis diagnoses in India

    Nightingale, E. S., Chapman, L. A. C., Srikantiah, S., Subramanian, S., Jambulingam, P., Bracher, J., Cameron, M. M. & Medley, G. F., 9/07/2020, In: PLoS Neglected Tropical Diseases.

    Research output: Contribution to Journal/MagazineJournal articlepeer-review

  27. 2018
  28. Published

    Age trends in asymptomatic and symptomatic Leishmania donovani infection in the Indian subcontinent: A review and analysis of data from diagnostic and epidemiological studies

    Chapman, L. A. C., Morgan, A. L. K., Adams, E. R., Bern, C., Medley, G. F. & Hollingsworth, T. D., 6/12/2018, In: PLoS Neglected Tropical Diseases. 12, 12, e0006803.

    Research output: Contribution to Journal/MagazineJournal articlepeer-review

  29. Published

    Quantifying the Infectiousness of Post-Kala-Azar Dermal Leishmaniasis Toward Sand Flies.

    Mondal, D., Bern, C., Ghosh, D., Rashid, M., Molina, R., Chowdhury, R., Nath, R., Ghosh, P., Chapman, L., Alim, A., Bilbe, G. & Alvar, J., 24/10/2018, In: Clinical infectious diseases : an official publication of the Infectious Diseases Society of America. 69, 2, p. 251-258

    Research output: Contribution to Journal/MagazineJournal articlepeer-review

  30. Published

    The role of case proximity in transmission of visceral leishmaniasis in a highly endemic village in Bangladesh

    Chapman, L. A. C., Jewell, C. P., Spencer, S. E. F., Pellis, L., Datta, S., Chowdhury, R., Bern, C., Medley, G. F. & Hollingsworth, T. D., 8/10/2018, In: PLoS Neglected Tropical Diseases. 12, 10, 29 p., e0006453.

    Research output: Contribution to Journal/MagazineJournal articlepeer-review

  31. Published

    Policy Recommendations From Transmission Modeling for the Elimination of Visceral Leishmaniasis in the Indian Subcontinent.

    Le, R. E., Chapman, L., Coffeng, L., Ruiz-Postigo, J., Olliaro, P., Adams, E., Hasker, E., Boelaert, M., Hollingsworth, T., Medley, G. & de, V. S., 1/06/2018, In: Clinical infectious diseases : an official publication of the Infectious Diseases Society of America. 66, 4, p. S301-S308

    Research output: Contribution to Journal/MagazineJournal articlepeer-review

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