Imposed biological constraints and estimated output ranges, mean and standard deviation of model parameters. V0, inoculated virus density (PFU ml−1); β, rate constant of infection (ml day−1); δ, death rate of productively infected cells (day−1); p, infectious virus production rate (day−1); ρ, efficacy of antibody neutralization (); ti, time of initiation of the IgM response (days post-infection); R0, basic reproductive number (equation (3.1)); p/δ, infectious burst size (average number of infectious virus particles produced over the lifetime of an infected cell, PFU).