The NBA is encountering some troubling COVID-19-related issues. Pool Photo-USA TODAY Sports

Multiple NBA players have tested positive for COVID-19 twice?

There is currently no proven evidence that shows an individual who tests positive for COVID-19 can't eventually become infected with the virus a second time. It appears the NBA is dealing with that reality following the holiday season. 

ESPN's Brian Windhorst and Zach Lowe reported on Tuesday that multiple NBA players who previously tested positive for the coronavirus have recently tested positive again. Windhorst and Lowe added this isn't surprising, as the CDC has expected reinfections since the start of the pandemic. 

It's unknown how many supposed asymptomatic players who tested positive for the virus earlier in the year produced so-called "false positives." Multiple leagues and competitions, including the NBA, have confirmed "false positive" cases since the spring and summer months. The CDC hasn't determined how long somebody who battles COVID-19 is immune from becoming infected a second time. 

While more is known about COVID-19 among medical professionals and experts today than 12 months ago, this news serves as a reminder that the situation continues to evolve and change even as some receive vaccines. As CNN's Valentina di Donato, Aleks Klosok and Ben Morse noted, Juventus and Argentina striker Paulo Dybala tested positive for COVID-19 six straight weeks last spring. 

Earlier on Tuesday, Wednesday's matchup between the Boston Celtics and Orlando Magic became the fifth NBA game of the campaign postponed because of issues related to COVID-19. 

More must-reads:

TODAY'S BEST
Cowboys VP backs Dak Prescott despite lack of contract extension
Cubs get major boost to lineup as former MVP returns from IL
Ohio State tops analyst's college football post-spring Top 25
Lions bringing back safety after gambling suspension
Tyler Boyd signs with AFC team
NHL announces 2024 Hart Trophy finalists
Jimmy Butler's agent responds to Heat president's criticism of star client
Giants claim former Patriots QB off waivers
Nuggets melt down under Timberwolves' pressure to go down 0-2
Watch: Knicks' Donte DiVincenzo makes, absorbs big shot to win Game 1
Bruins take series opener over Panthers in 5-1 rout
Spurs' Victor Wembanyama unanimously wins NBA Rookie of the Year award
Phillies remain MLB's hottest team with dominant Zack Wheeler performance
Heat president Pat Riley calls out Jimmy Butler twice following playoff exit
Brooks Koepka sets up epic clash with Scottie Scheffler at PGA Championship
How Tom Brady's investment in English soccer team cratered
Week 12 NASCAR power rankings: Kyle Larson distances himself with historic win
Ex-GM confident 49ers can avoid breaking the bank on Brock Purdy extension
Five most surprising breakout players in this MLB season
The most exciting offseason addition for every NFL team