COVID-19 Immunity Passports: An Emerging Threat to Public Health?

In their recent commentary published in this journal, Hart et al. rightfully emphasized the importance of looking at new methods that would remove physical distancing measures and return to the new normal. 1The researchers concluded that multiple methods and public health guidelines have been proposed for public health preparedness, including the use of Immunity Cards/Passports. 1 During pandemics such as coronavirus disease 2019 (COVID-19), disaster medicine and public health experts can help scientists, policy-makers, leaders, decision-makers, and the public in general to better understand the implications of using immunity passports and certificates.As with all public policy and interventions, safeguards are needed if vaccine passports are to be used by the public. 2This study contributes to the recent debate within the scientific community on the use of vaccine passports or certificates.There is much debate about the use of "immunity passports" or COVID-19 Vaccine Certificate (CVC) in the context of COVID-19 pandemic.This "passport" would give people the rights and privileges that other members of the community do not have such as to work or travel.Immunity passports could allow those who have tested positive for antibodies to COVID-19 the freedom to return to work, shop, and travel.These passports could even be electronic and have a QR code that could be scanned like a boarding pass and presented as needed for entry to a variety of venues.The idea of an immunity passport is simple: have people carry a digital or physical proof that they have been infected with an infectious disease in the past and might, therefore, carry antibodies that make them immune, or that they have been immunized against such a disease.An immunity passport would usually contain the identification details of the carrier and, where applicable, their vaccine-related information.Just as any document can be forged, so too is the potential for fraudulent immunity passports.To date, there is no consistent global standard or recommendation for immunity certificate exists at present.Nonetheless, the idea is being floated in the United States, Germany, the United Kingdom, and Southeast Asian nations. 3In the Philippines, several bills concerning the implementation of an immunity passport program have already been filed in the Congress and Senate.The aim of such bill is to provide persons who have received a COVID-19 vaccine certain benefits such as international or domestic travel, exemption from local checkpoints and quarantines, as well as access to business establishments.Vaccine passports and certificates may have significant implications for privacy and autonomy, freedom, of movement and association, equity, and discrimination, particularly when it comes to accessing everyday goods and services.The World Health Organization (WHO) cautioned the public that vaccine passports should not be used at this time, particularly not as a prerequisite for travel "because of lack of vaccine equity." 4 Proponents of immunity passport say it is a good way to jumpstart international travel and tourism, and eventually get back to our normal way of life.One justification for an immunity certification/passport is the key public health principle of least infringement. 5However, while the proposed immunity passport appears to be a useful tool to revive the global economy, immunity passports do carry scientific, ethical, and legal questions.Immunity passports, which can be viewed as a license card, are also an invitation for discrimination and fraud.First and most significant, there could be discrimination in the context of workplace.But protecting other employees from a nonimmune person who could catch and spread COVID-19 outweighs the ethical dilemma.In some settings, it may be justifiable to require workers to have been fully vaccinated against COVID-19.In the context of workplace, employers will look to hiring immune workers only.That may itself be discriminatory as able-bodied workers may be rejected.Another issue is that substantial numbers of workers would be unable to comply with a requirement to be vaccinated through no fault of their own such as those undergoing chemotherapy or with anaphylactic reactions to something in the vaccine. 6Third, there is the risk of socioeconomic discrimination.Immunity passport plans would likely disproportionately affect lower-income and minority groups.Vaccine passports have been seen as a way to restart economies to some, while others have criticized the documentation as creating further divide between wealthy nations and low-income countries that do not have widespread access to the vaccines. 7In this context, the requirement of these immunity passports could, in practice, have a greater detrimental effect on the health of those working in certain industries and those with less income or savings.Fourth, there is a