Facebook post by University of Helsinki

Why is the new coronavirus so infectious? A breakthrough discovery was made by researchers, who found out that there is also a second way the virus is entering into hu­man cells.
The second ‘key' used by the SARS-CoV-2 virus to enter into human cells discovered | University of Helsinki l.facebook.com

To efficiently infect human cells, SARS-CoV-2, the virus that causes COVID-19, is able to use a receptor called Neuropilin-1, which is very abundant in many human tissues