Investigation of a cross-border case of Lassa fever in West Africa

Mory Keïta,Lorenzo Subissi,Mohamed Fode Camara,Mamoudou Harouna Djingarey,Georges Alfred Kizerbo,Ahmadou Barry,Ahmadou Doré,Nfaly Magassouba,Fodé Amara Traoré,Mamadou Oury Baldé,Ibrahima Socé Fall,Raymond Pallawo

doi:10.1186/s12879-019-4240-8

Abstract

BackgroundInfectious disease prevention and control strategies require a coordinated, transnational approach. To establish core capacities of the International Health Regulations (IHR), the World Health Organization (WHO) developed the Integrated Diseases Surveillance and Response (IDSR) strategy. Epidemic-prone Lassa fever, caused by Lassa virus, is an endemic disease in the West African countries of Ghana, Guinea, Mali, Benin, Liberia, Sierra Leone, Togo and Nigeria. It’s one of the major public health threats in these countries. Here it is reported an epidemiological investigation of a cross-border case of Lassa fever, which demonstrated the importance of strengthened capacities of IHR and IDSR.Case presentationOn January 9th, 2018 a 35-year-old Guinean woman with fever, neck pain, body pain, and vomiting went to a hospital in Ganta, Liberia. Over the course of her illness, the case visited various health care facilities in both Liberia and Guinea. A sample collected on January 10th was tested positive for Lassa virus by RT-PCR in a Liberian laboratory.The Guinean Ministry of Health (MoH) was officially informed by WHO Country Office for Guinea and for Liberia.ConclusionThis case report revealed how an epidemic-prone disease such as Lassa fever can rapidly spread across land borders and how such threat can be quickly controlled with communication and collaboration within the IHR framework.

Highlights

Infectious disease prevention and control strategies require a coordinated, transnational approach
This case report revealed how an epidemic-prone disease such as Lassa fever can rapidly spread across land borders and how such threat can be quickly controlled with communication and collaboration within the International Health Regulations (IHR) framework
Lassa fever can sometimes manifest as a viral hemorrhagic fever, and it is difficult to recognize and detect rapidly

Summary

Conclusion

This case report revealed how an epidemic-prone disease such as Lassa fever can rapidly spread across land borders and how such threat can be quickly controlled with communication and collaboration within the IHR framework.

Background

Findings

Discussion and conclusions