NL-63 Monoclonals
Coronaviruses are named for the crown-like spikes on their surface. There are four main sub-groupings of coronaviruses, known as alpha, beta, gamma, and delta. Human coronaviruses were first identified in the mid-1960s. According to the CDC, common human coronaviruses, including strains 229E and NL63, usually cause mild to moderate upper-respiratory tract illnesses, like the common cold and at some point in their lives most people will get infected with one or more of these viruses.