The most important factor for the spread of any communicable disease is its reproduction number, or “R number”, which is the number of people to whom an infected person will typically transmit th eve money e pathogen in a population with no immunity.
If the R number is greater than one, the epidemic will spread, while if it is l cheap eve gold ower than one, it will decline. The most contagious diseases, such as measles, can have R numbers that reach 15 during the height of epidemics, though lower values are more common. The R number of smallpox is generally about 5, though it can reach as high as 10, and influenza typically has an R number of about 2. As Blizzard would not release deta eve online isk ils of the number of infections over time, it was impossible to calculate how the zombie plague’s R number had altered over time.
Professor Ferguson said a value of about 5 seemed likely. This would have been expected to buy eve isk grow had Blizzard not intervened. “It would eventually have gone up to 10 or even 20, and you’d have seen 90 to 95 per cent of all players becoming infect cheap eve gold ed,” Professor Ferguson said.
