Pandemics such as COVID-19 are gendered with regard to who is infected, who dies, who provides care, who is secured against violence and economic change, and who leads and makes decisions.1 Vaccines are no different and there is a need to address male bias in vaccine development to make women safe from deadly diseases.2 For example, clinical trials that are not done in both men and women can raise adverse outcomes during implementation due to sex-based differences in immunological response.3