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Vaccines are the best chance to control the pandemic—unless leaders succumb to vaccine nationalism. Vaccine nationalism is a frequent recurrence, especially during a brand-new market distribution. The development of safe and effective COVID-19 vaccines in such a short space of time is a testament to modern scientific abilities. It will also test the world's political will and moral commitment to end this pandemic. As desperate as the COVID-19 pandemic, vaccine nationalism is already setting a foundation for itself and is considered socially and economically counterproductive. Vaccine equity is not just a theoretical slogan, and it protects people worldwide from new vaccine-resistant variants. Understanding and anticipating the consequences is vital, and creating a global solution approach to avoid them. This article evaluates the common issues previously faced and the plausible ones during this pandemic. A few recommendations are made to warn and accentuate the reality of this dire matter.

Brazil is currently facing one of the biggest public health crises in its history. It is widely accepted that the coronavirus disease 2019 (COVID-19) pandemic is testing the resilience of health systems as the demand for resources, laboratories, and task force allocation is increasing, as well as the number of cases requiring hospitalization in intensive care units (ICU). In addition, the fact that residues from previous epidemics caused by arboviruses-such as the Zika virus (ZIKV)-coexist in Brazil increases the burden health sector in the country.

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