Introduction : The case of Ebola in Guinea (2013-2016) revealed weaknesses in the resilience of the health system and highlighted the challenge of coordinating all actors in the response. After the epidemic, national authorities and their international partners began to strengthen the health system. In 2021, Guinea faced COVID-19 simultaneously with the resurgence of Ebola and other diseases with epidemic potential.Purpose of research : The objective of this article is to analyze the evolution of the five characteristics of health resilience of Kruk et al. (2015) in the Guinean context. To do this, data triangulation was carried out through a literature review, 41 semi-structured interviews with international, national and local stakeholders, and 37 events observed in the post-Ebola period.Results : Our results show that the characteristic of integration was the most important in our study. This is because of the importance of coordination, communication and information sharing among stakeholders during crises. Then, diversity exposes the need to be able to face several health challenges simultaneously. Efforts were focused on Ebola during the first outbreak, but since the COVID-19 pandemic, Guinea has been able to cope with several health challenges. Raising awareness, on the other hand, necessitates an understanding of the context, its strengths, and weaknesses. Guinea learned lessons from Ebola and implemented a program to strengthen the emergency response system. On self-regulation, the speed of the response relies on mechanisms for early detection, notification, and response. The country is now well resourced and has proven information and response mechanisms. Finally, constant adaptability by taking into account lessons learned allows us to set course and prepare for other potential crises and this is what is being done constantly.Conclusions : Given Guinea’s ubiquitous fragility before Ebola, the health system is still not fully resilient. However, gains in each of the characteristics of resilience improve the response to COVID-19.