Lessons Learnt from Epidemiological Investigation of Lassa Fever Outbreak in a Southwest State of Nigeria December 2015 to April 2016

Introduction: An outbreak of Lassa Fever (LF) reported and confirmed in Ondo state, Southwest Nigeria in January 2016 was investigated. This paper provides the epidemiology of the LF and lessons learnt from the investigation of the outbreak.

Methods: The incidence management system (IMS) model was used for the outbreak coordination. Cases and deaths were identified through the routine surveillance system using standard definitions for suspected and confirmed cases and deaths respectively. Blood specimens collected from suspect cases were sent for confirmation at a WHO accredited laboratory. Active case search was intensified, and identified contacts of confirmed cases were followed up for the maximum incubation period of the disease. Other public health responses included infection prevention and control, communication and advocacy as well as case management. Data collected were analysed using SPSS 20, by time, place and persons and important lessons drawn were discussed.  

Results: We identified 90 suspected LF cases of which 19 were confirmed by the laboratory. More than half (52.6%) of the confirmed cases were females with majority (73.7%) in the age group ≥ 15 years. The Case Fatality Rate (CFR) of 63.2% among the laboratory-confirmed positive cases where 9 of 19 cases died, was significantly higher compared to the laboratory confirmed negative cases where 6 of the 65 cases died ( CFR; 8.5%) p ≤ 0.05. Two hundred and eighty-seven contacts of the confirmed cases were identified, out of which 267(93.0%) completed  the follow-up without developing any symptoms and 2 (0.7%) developed symptoms consistent with LF and were confirmed by the laboratory. More than half of the contacts were females (64.5%) with most of them (89.2%) in the age group ≥ 25 years.  

Discussion: One key lesson learnt from the investigation was that the confirmed cases were mainly primary cases; hence the needs to focus on measures of breaking the chain of transmission in the animal-man interphase during Lassa fever epidemic preparedness and response. In addition, the high case fatality rate despite early reporting and investigation suggested the need for a review of the case management policy and structure in the State. Key Words: Lassa fever, Outbreak Response, Incident Management System, Nigeria

The effect of integration of family planning education with infant vaccination visits on the uptake of postpartum family planning in Ile-Ife, Nigeria

Integration of maternal and child health services can improve service utilisation. An operations research was conducted in a Nigerian tertiary hospital. A pilot study was conducted at three family planning (FP) and vaccination sites. A formative assessment was carried out using client records and key-informant interviews. Pre- and post-integration questionnaires were administered to 715 women attending the infant vaccination clinics. Themes were developed from the qualitative data and some verbatim quotes were reported. The quantitative data were analysed using Stata, version 17. Univariate and multivariate analyses were done to compare associations between categorical independent and outcome variables where applicable, with level of significance set at <0.05 and 95% confidence interval.The health care workers were willing to integrate the two services but inadequate training and time constraint were key barriers. Significant increases in the knowledge of contraception (25.7% vs 34.7%, p = 0.001), intention to use contraception (31.2% vs 38.2%, p = 0.001), and number of new acceptors of FP (487 vs 664, p = 0.001), were recorded post-integration, even though it was difficult to determine whether the observed increase in new FP acceptors was due to increased patronage from the study participants and not from other clients who were not part of the study. Integration of FP education and infant vaccination services is a feasible and acceptable strategy for increasing contraceptive use among postpartum women, as vaccination clinic staff were willing to take on FP education along with their current duties.Impact statementWhat is already known on this subject? Few studies have reported on the outcomes related to FP and vaccination integration.What the results of this study add? A simple model of FP education and infant vaccination services integration is a feasible and acceptable strategy for increasing contraceptive use among postpartum women. However, inadequate training and time constraint were major concerns for healthcare providers.Implications of these findings for clinical practice and/or further research? Targeted family planning education and referral should be encouraged during infant vaccination visits. There is a need for further research to determine the providers' skills necessary for integration and whether integration poses a risk to either service.