As I sit here in my office at the Slovak Medical University in Bratislava, my colleagues are experiencing great moral anguish because of Russia’s invasion of neighboring Ukraine. Simultaneously, we are also confronting the Omicron wave of the Covid-19 pandemic. The war complicates and burdens health care here and in other border nations exponentially, and especially so in combination with the pandemic.

The recognition of the social injustices surrounding the pandemic is an important opportunity to understand the longstanding links between health and social and global justice.

The commitments made by the wealthiest countries to share Covid vaccines and funding for international cooperation mechanisms are crucial, but insufficient. They reflect the “securitization of health,” a 21st century phenomenon whereby states turn health issues into national security issues.

The United States, Russia, and China support temporary patent waivers for Covid vaccines. The waivers, which need support from other countries, would likely save lives in low- and middle-income countries.

In Costa Rica, where I live, only 24% of the population has received at least one vaccine dose because we have received very small amounts of vaccines. The Costa Rican president suggested that every person who can travel to the U.S. to get the jab, should do it. Vaccine tourism, then, seems to be another promising business opportunity for the powerful countries that have accumulated vaccines instead of redistributing them soon and fairly.

Citing the Yellow Card as precedent for Covid-19 travel passes that exempt those with proof of vaccination from testing and quarantine mandates when crossing certain borders is an erroneous policy assumption that could prolong the pandemic and imperil global health.

The World Health Organization recently released a long-anticipated report on SARS-CoV-2 origins, based on 28 days of field research and site visits in China conducted jointly by 17 international and...

A third Covid vaccine candidate moving closer to potential FDA authorization is less effective than the two Covid vaccines already authorized in the United States. Is it ethical to offer a vaccine with lower efficacy? Is it ethical not to offer it in a public health emergency?

The headlines are terrifying: A highly contagious new variant of the coronavirus is circulating in England. As the story spread, politicians and media outlets reported a devastating statistic: the new strain is 70% more transmissible than other strains of the virus. This has led to new lockdowns; many border closures; flight cancellations; and people fleeing the U.K. by train, boat, and plane. But is any of this necessary? Is the world suffering from mutation panic?

A Covid-19 vaccine developed by Pfizer and BioNTech has received emergency authorization in the United States and has been authorized in the countries, and a vaccine by Moderna is likely to be authorized soon. In spite of this good news, at least for the first couple of years, Covid-19 vaccines will be a scarce resource. Because low-income countries are likely to lose out in the scramble to get access to them, there have been calls for global solidarity. While equitable allocation of vaccines around the world would be ideal, it is unrealistic as a near-term goal.