Since March, over 400 US colleges and universities have announced students get Covid-19 vaccinations, ahead of the Autumn semester but those who have been inoculated with India’s indigenous Covaxin or the Russian-made Sputnik V are being asked to re-vaccinate as these vaccines have not yet been approved by the World Health Organization (WHO).
Rukmini Callimachi reports in the The New York Times that Milloni Doshi, a 25-year-old student from India, who is due to start her master’s degree this fall at Columbia University’s School of International and Public Affairs, has been administered two doses of Covaxin. Now, Columbia has told her that she will need to be revaccinated with a different vaccine once she arrives on campus.
“I am just concerned about taking two different vaccines. They said the application process would be the toughest part of the cycle, but it’s really been all of this that has been uncertain and anxiety-inducing,” Doshi wrote via a messaging app.
Campuses are proposing different measures, out of which the more complicated scenario is if students received a vaccine that has not been approved by the WHO, like Sputnik or Covaxin. Many colleges are proposing that those students will need to be revaccinated, which presents both medical and logistical conundrums.
This is primarily because no data exists on whether combing vaccines from different companies is safe. “Since Covid-19 vaccines are not interchangeable, the safety and effectiveness of receiving two different Covid-19 vaccines have not been studied,” said Kristen Nordlund, spokesperson for the Centers for Disease Control and Prevention (CDC).
Nordlund also advised that people vaccinated outside the US with a vaccine not authorised by WHO should wait for a minimum of 28 days before taking the first dose of one of the Food and Drug Administration (FDA)-sanctioned vaccines.
American students have access to the Pfizer, Moderna and Johnson & Johnson vaccines, three of the eight doses authorised by the global health body. This disparity could hinder colleges that have made it a major priority to retain international students, who brought in close to USD 39 billion in tuition dollars in the year before the pandemic, according to an analysis.