What magnitude elevation of virus-specific IgG titer is usually considered the minimum for the diagnosis of an acute viral infection?

What magnitude elevation of virus-specific IgG titer is usually considered the minimum for the diagnosis of an acute viral infection?

What magnitude elevation of virus-specific IgG titer is usually considered the minimum for the diagnosis of an acute viral infection?









A. 2 fold
B. 4 fold
C. 10 fold
D. 100 fold
E. 1 million billion fold














Answer: B