Coronavirus?

In Reply.— In both of our papers,1,2 we referred to coronavirus-associated disease and termed the particles "coronavirus-like." In order to make our position even less equivocal, we stated in our first paper (pages 213-214)1: "At present, because of the lack of viral propagation in tissue culture, the virions found in the stools are only identified on the basis of their morphologic appearance (see Figure). These differences could either represent various aspects of one virus, or different viruses presently classified as coronaviruses.