Each country's annual relative change in IPD incidence (as a percentage) and the corresponding incidence rate ratio (IRR) were calculated over the seven years after the PCV13 program began, using the year before the program's start as the comparison point.The PCV13-7 vaccine's introduction ...
VACCINE [54] utilizes anti-packets to inform nodes to drop delivered messages. Shin et al.'s [55] message dropping policies are based on the total number of nodes in the network and the total number of replicas of a given message existing in the network. The former is assumed to be ...