Australia had escaped. It had escaped because of a stringent quarantine of incoming ships. Some ships arrived there with attack rates as high as 43 percent and fatality rates among all passengers as high as 7 percent. But the quarantine kept the virus out, kept the continent safe, until late December 1918 when, with influenza having receded around the world, a troopship carrying ninety ill soldiers arrived. Although they too were quarantined, the disease penetrated—apparently through medical personnel treating troops. By then the strain had lost much of its lethality. In Australia the death
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