Argentina’s President Alberto Fernández tested positive for COVID-19 approximately two months after receiving a shot of the Russian Sputnik V vaccine, according to a CNN report.
“I’m already isolated, complying with the current protocol and following the instructions of my personal doctor,” Fernández tweeted. “I have contacted the people I met in the last 48 hours to assess whether they constitute close contact.”
Quería contarles que al terminar el día de hoy, luego de presentar un registro de fiebre de 37.3 y un leve dolor de cabeza, me realice un test de antígeno cuyo resultado fue positivo.
— Alberto Fernández (@alferdez) April 3, 2021
The Russian Sputnik V vaccine was tested as approximately 91.6 effective. The Sputnik V vaccine is not approved for use in the United States.
The case reveals even some people who have received a vaccine can still test positive for the coronavirus. The Centers for Disease Control (CDC) note, “If your body develops an immune response—the goal of vaccination—there is a possibility you may test positive on some antibody tests.”
On Feb. 2, CNN noted, “Democratic Rep. Stephen Lynch of Massachusetts did. He tested positive after he got his second dose of the Pfizer vaccine. Hall of Fame basketball coach Rick Pitino, who coaches the men’s team at Iona College in New York, also tested positive after getting his first dose.”
Reasons for infections among those who are vaccinated can include the lag time between vaccination and immunity, as well as new variants of COVID-19. No vaccination is 100 percent effective.
Argentina has experienced a difficult battle with COVID-19. The South American nation has confirmed more than 2.3 million coronavirus cases and more than 56,000 related deaths.
The case of Fernández may be uncommon, but is not unique. Nearly all reported cases of those infected after vaccination have recovered.