We need different phases of clinical trials, first in an experimental setting with controlled exposure, and then a field trial with natural exposure to the virus, and that cannot be a small trial. Dirk Pfeiffer More Quotes by Dirk Pfeiffer More Quotes From Dirk Pfeiffer This is what is needed. At a national level and even provincial level the policies were okay, but there were shortcomings in the way they were translated. And that's something that needs to be worked out to stop this disease. Dirk Pfeiffer environment I am very much hoping that I am wrong, but if I consider the epidemiological characteristics of this virus disease, I would have to be extremely skeptical. Dirk Pfeiffer health-news You can only draw more definitive conclusions if you compare prevalence (of the coronavirus) between different species based on representative samples, which these almost certainly are not. Dirk Pfeiffer
