Although empirical studies show that protection against influenza infection in humans is closely related to antibody titres. influenza epidemics are often described under the assumption that individuals are either susceptible or not. Here we develop a model in which antibody titre classes are enumerated explicitly and mapped onto a variable scale of susceptibility in different age gro... https://www.markbroyard.com/great-pick-ego-sebitar-solution-500ml-supply-limited-choice/