Infection prevention and control (IPC) at a Lassa fever treatment center before and after the implementation of an intensive IPC program

Background: Infection prevention and control (IPC) programs are important to control the Lassa Fever (LF) outbreak. We reported IPC's status at the Federal Medical Centre, Owo, southwest Nigeria, before and after implementing the IPC program during a surge in the LF outbreak. Methods: We conducted a longitudinal observational study among five health care professionals at the Federal Medical Centre, Owo, between February 2019 and May 2019 using the IPC Assessment Framework (IPCAF). The tool has eight core components with a score of 0-100 per component and provided a baseline assessment of the IPC program and evaluation after three months. We interviewed relevant unit heads and IPC committee members in the first phase. In the second phase, we designed and implemented the IPC program, and in the third phase, we conducted a repeat interview similar to the first phase. The program initiated included training healthcare workers and providing relevant IPC items according to identified gaps and available funding. Results: We interviewed five health care professionals, two female nurses, and three male doctors responsible for organizing and implementing IPC activities at the Federal Medical Centre, Owo, with an in-depth understanding of IPC activities.  The overall IPC level score increased from 318.5 at baseline to 545 at three months later. IPC improvements were reported in all the components, with IPC education and training [baseline (20), final (70)], IPC guidelines [baseline (50), final (92.5)] and monitoring/audits of IPC practices and feedback [baseline (40), final (82.5)] recording the highest improvements. Healthcare-associated infection [baseline (10), final (25)], and built environment, materials, and equipment for IPC [baseline (43.5), final (55)] had the least improvement. Poor motivation to adopt recommended changes among hospital staff were major issues preventing improvements. Conclusion: Promotion of IPC program and activities should be implemented at the Federal Medical Centre, Owo.   References World Health Organization, WHO. Lassa fever. Available from: https://www.who.int/health-topics/lassa-fever/#tab=tab_1. [Accessed on 11 October 2020] Nigeria Centre for Disease Control. Lassa fever. Available from: https://ncdc.gov.ng/diseases/factsheet/47. [Accessed on 11 October 2020]. World Health Organization, WHO. Lassa fever. Available from: https://www.who.int/news-room/fact-sheets/detail/lassa-fever. [Accessed on 11 October 2020]. Ijarotimi IT, Ilesanmi OS, Aderinwale A, Abiodun-Adewusi O, Okon IM. Knowledge of Lassa fever and use of infection prevention and control facilities among health care workers during Lassa fever outbreak in Ondo state, Nigeria. Pan Afr Med J. 2018; 30:1-13. https://doi.org/10.11604/pamj.2018.30.56.13125 Mateer EJ, Huang C, Shehu NY, Paessler S. Lassa fever–induced sensorineural hearing loss: A neglected public health and social burden. PLoS Negl Trop Dis. 2018;12(2):1-11. https://doi.org/10.1371/journal.pntd.0006187 Ijarotimi I., Oladejo J., Nasidi A, Jegede O. Lassa fever in the State Specialist Hospital Akure, Nigeria: Case report, Contact tracing and outcome of hospital contacts. Int J Infect Trop Dis. 2016;3(1):20-28. https://doi.org/10.14194/ijitd.3.1.4 Ireye F, Ejiyere H, Aigbiremolen AO, Famiyesin OE, Rowland-Udoh EA, Ogeyemhe CO, Okudo I, Onimisi AB. Knowledge, attitude and infection prevention and control practices regarding Lassa fever among healthcare workers in Edo State, Nigeria. Int J Prev Treat. 2019;8(1):21-27. https://doi.org/10.5923/j.ijpt.20190801.03 World Health Organization. Infection prevention and control assessment framework at the facility level. 2018; 2016:1-15. Available from: https://www.who.int/infection-prevention/tools/core-components/IPCAF-facility.PDF?ua=1 [Accessed on 11 October 2020]. World Health Organization, WHO. Communicable disease surveillance and response systems - Guide to monitoring and evaluating. Epidemic and pandemic alert and response. Published online 2006:90. doi: rr5305a1 [pii] Ousman K, Kabego L, Talisuna A, Diaz J, Mbuyi J, Houndjo B, et al. The impact of Infection Prevention and control (IPC) bundle implementation on IPC compliance during the Ebola virus outbreak in Mbandaka/Democratic Republic of the Congo: A before and after design. BMJ Open. 2019;9(9):1-6. https://doi.org/10.1136/bmjopen-2019-029717 Nzinga J, Mbindyo P, Mbaabu L, Warira A, English M. Documenting the experiences of health workers expected to implement guidelines during an intervention study in Kenyan hospitals. Implement Sci. 2009;4(1):1-9. https://doi.org/10.1186/1748-5908-4-44. Ataiyero Y, Dyson J, Graham M. Barriers to hand hygiene practices among health care workers in sub-Saharan African countries: A narrative review. Am J Infect Control. 2019 May;47(5):565-573. https://doi.org/10.1016/j.ajic.2018.09.014. Gilbert GL, Kerridge I. The politics and ethics of hospital infection prevention and control: a qualitative case study of senior clinicians’ perceptions of professional and cultural factors that influence doctors’ attitudes and practices in a large Australian hospital. BMC Health Serv Res. 2019; 19(212). https://doi.org/1186/s12913-019-4044-y. &nbsp

Assessment of the willingness of doctors to work at coronavirus disease-19 treatment center

Objectives: The Coronavirus disease 2019 (COVID-19) pandemic is currently ravaging the entire world. Doctors as well as other healthcare workers as front-liners in tackling this disease are at a higher risk of exposure to the virus and its potential consequences. The objectives of this study were to assess the knowledge of doctors on the mode of transmission of the virus, to assess their willingness and readiness to work at the COVID-19 treatment center, to identify factors that affect their willingness to work at the treatment center, and to assess their knowledge on infection prevention and control (IPC) practices.Materials and Methods: All medical doctors who attended the COVID-19 sensitization and preparedness meeting with the management of Federal Medical Centre, Owo, Ondo State Nigeria, were recruited into the study after an informed consent was obtained. Study period spanned from the beginning of April 2020 to middle of June 2020. A structured, pre-tested questionnaire was administered to collect relevant information.Results: A total of 112 doctors that were in attendance had the questionnaires administered to them; however, 106 (94.64%) questionnaires were returned. Out of these, 64.2% had correct knowledge of the mode of transmission of COVID-19. We observed that only 34.9% of doctors were willing to work in the treatment center while 1.9% were indifferent. The perceived lack of adequate training and insufficient personal protective equipment (PPE) for staff were major reasons why some doctors were not willing to work in these centers. Fifty percent of the participants got the correct meaning of donning and doffing and three quarters of them had good knowledge of IPC practice.Conclusion: We found in our study that a substantial number of doctors were unwilling to work in COVID-19 treatment areas due to a number of factors including perceived inadequate PPE and inadequate knowledge. The factors that would influence their willingness to work in COVID-19 treatment center were more training, provision of inducement or extra allowances and life insurance schemes. We recommend that in addition to putting emphasis on training, re-training, and providing appropriate equipment, special inducement allowance, and life insurance for healthcare workers might be helpful to encourage them to work in COVID-19 treatment centers

Lassa fever outcomes and prognostic factors in Nigeria (LASCOPE): a prospective cohort study

BACKGROUND: Lassa fever is a viral haemorrhagic fever endemic in parts of west Africa. New treatments are needed to decrease mortality, but pretrial reference data on the disease characteristics are scarce. We aimed to document baseline characteristics and outcomes for patients hospitalised with Lassa fever in Nigeria. METHODS: We did a prospective cohort study (LASCOPE) at the Federal Medical Centre in Owo, Nigeria. All patients admitted with confirmed Lassa fever were invited to participate and asked to give informed consent. Patients of all ages, including newborn infants, were eligible for inclusion, as were pregnant women. All participants received standard supportive care and intravenous ribavirin according to Nigeria Centre for Disease Control guidelines and underwent systematic biological monitoring for 30 days. Patients' characteristics, care received, mortality, and associated factors were recorded using standard WHO forms. We used univariable and multivariable logistic regression models to investigate an association between baseline characteristics and mortality at day 30. FINDINGS: Between April 5, 2018, and March 15, 2020, 534 patients with confirmed Lassa fever were admitted to hospital, of whom 510 (96%) gave consent and were included in the analysis. The cohort included 258 (51%) male patients, 252 (49%) female patients, 426 (84%) adults, and 84 (16%) children (younger than 18 years). The median time between first symptoms and hospital admission was 8 days (IQR 7-13). At baseline, 176 (38%) of 466 patients had a Lassa fever RT-PCR cycle threshold (Ct) lower than 30. From admission to end of follow-up, 120 (25%) of 484 reached a National Early Warning Score (second version; NEWS2) of 7 or higher, 67 (14%) of 495 reached a Kidney Disease-Improving Global Outcome (KDIGO) stage of 2 or higher, and 41 (8%) of 510 underwent dialysis. All patients received ribavirin for a median of 10 days (IQR 9-13). 62 (12%) patients died (57 [13%] adults and five [6%] children). The median time to death was 3 days (1-6). The baseline factors independently associated with mortality were the following: age 45 years or older (adjusted odds ratio 16·30, 95% CI 5·31-50·30), NEWS2 of 7 or higher (4·79, 1·75-13·10), KDIGO grade 2 or higher (7·52, 2·66-21·20), plasma alanine aminotransferase 3 or more times the upper limit of normal (4·96, 1·69-14·60), and Lassa fever RT-PCR Ct value lower than 30 (4·65, 1·50-14·50). INTERPRETATION: Our findings comprehensively document clinical and biological characteristics of patients with Lassa fever and their relationship with mortality, providing prospective estimates that could be useful for designing future therapeutic trials. Such trials comparing new Lassa fever treatments to a standard of care should take no more than 15% as the reference mortality rate and consider adopting a combination of mortality and need for dialysis as the primary endpoint. FUNDING: Institut National de la Santé et de la Recherche Médicale, University of Oxford, EU, UK Department for International Development, Wellcome Trust, French Ministry of Foreign Affairs, Agence Nationale de Recherches sur le SIDA et les hépatites virales, French National Research Institute for Sustainable Development

Emergence and spread of two SARS-CoV-2 variants of interest in Nigeria.

Identifying the dissemination patterns and impacts of a virus of economic or health importance during a pandemic is crucial, as it informs the public on policies for containment in order to reduce the spread of the virus. In this study, we integrated genomic and travel data to investigate the emergence and spread of the SARS-CoV-2 B.1.1.318 and B.1.525 (Eta) variants of interest in Nigeria and the wider Africa region. By integrating travel data and phylogeographic reconstructions, we find that these two variants that arose during the second wave in Nigeria emerged from within Africa, with the B.1.525 from Nigeria, and then spread to other parts of the world. Data from this study show how regional connectivity of Nigeria drove the spread of these variants of interest to surrounding countries and those connected by air-traffic. Our findings demonstrate the power of genomic analysis when combined with mobility and epidemiological data to identify the drivers of transmission, as bidirectional transmission within and between African nations are grossly underestimated as seen in our import risk index estimates

Humoral and cellular immune responses to Lassa fever virus in Lassa fever survivors and their exposed contacts in Southern Nigeria.

Funder: National Institute of Allergy and Infectious DiseasesFunder: Science for Africa FoundationElucidating the adaptive immune characteristics of natural protection to Lassa fever (LF) is vital in designing and selecting optimal vaccine candidates. With rejuvenated interest in LF and a call for accelerated research on the Lassa virus (LASV) vaccine, there is a need to define the correlates of natural protective immune responses to LF. Here, we describe cellular and antibody immune responses present in survivors of LF (N = 370) and their exposed contacts (N = 170) in a LASV endemic region in Nigeria. Interestingly, our data showed comparable T cell and binding antibody responses from both survivors and their contacts, while neutralizing antibody responses were primarily seen in the LF survivors and not their contacts. Neutralizing antibody responses were found to be cross-reactive against all five lineages of LASV with a strong bias to Lineage II, the prevalent strain in southern Nigeria. We demonstrated that both T cell and antibody responses were not detectable in peripheral blood after a decade in LF survivors. Notably LF survivors maintained high levels of detectable binding antibody response for six months while their contacts did not. Lastly, as potential vaccine targets, we identified the regions of the LASV Glycoprotein (GP) and Nucleoprotein (NP) that induced the broadest peptide-specific T cell responses. Taken together this data informs immunological readouts and potential benchmarks for clinical trials evaluating LASV vaccine candidates