Early Adaptive Humoral Immune Responses and Virus Clearance in Humans Recently Infected with Pandemic 2009 H1N1 Influenza Virus
Figure 4
Initial viral load in nasopharyngeal swab and serum IgM affect virus clearance.
Proportions of patients with undetectable viral loads in days since admitted to hospital were graphed with the days post symptom onset. Patients were divided into quartiles by viral load (a) or unit of IgM (b), 1st and 4th quartiles were showed. Each quartile had 27 subjects; c) The viral loads of patients in groups of 1st and 4th quartiles of IgM unit were compared.