Missing Biden triggers slew of memes as online conspiracy theorists spread rumors lame duck president, 81, is in a hospice

Joe Biden's continued absence after announcing he's standing down as presidential candidate have sparked a slew of memes - and rumors he's in a hospice.  

The 81-year-old has not been seen in six days or since he dropped out of his bid for reelection, with aides explaining that he'd tested positive for COVID.

Concerns have already been raised about his health, with wild suggestions that Biden is seriously-ill or even dead. The president's health is a matter of national security, so any illness or death would quickly be announced to inform Americans of who was taking over.