What can academics do during a lockdown situation to contribute to the fight against COVID-19? They can reflect upon COVID-19 challenges in their areas of expertise and provide suggestions for difficult dilemmas. That is what the 11 authors who contributed to this special issue did. Working to tight deadlines, they drafted manuscripts related to COVID-19 research ethics, responded graciously and with flexibility to the expedited double review and submitted their final versions at double speed. For some this meant late evening work after online meetings on various COVID-19 committees. For others it meant an additional workload in their already full schedules. We are very grateful to each of the 11 authors for their generosity of spirit. We hope that this special issue will be as valuable to readers as it is valuable to us. Compelling messages emerge from this collection about how to ensure that COVID-19 research is ethical. These include the pressing need for care, solidarity and trustworthiness. Care While many have assumed a less active life during lockdown, 30,000 healthy people from 140 countries registered their interest to enrol in vaccine studies within unknown risks (Chappell and Singer, 2020 1). Motivations for taking part in vaccine research vary widely. On the one hand, in resource-poor settings, 'financial incentives and access to health care are a major driver for enrolment in studies' (Mduluza et al., 2013; Mfutso-Bengo et al., 2008). On the other hand, preliminary results from a study undertaken in Canada (in relation to an Ebola vaccine) suggest that, in high-income settings, participant motivations include the desire to help develop a new vaccine, and the desire to help others (Tangwa et al., 2018).