CHAPTER 33 TWENTY-THREE DAYS. Twenty-three long, agonising days. But they’d passed, along with all five of the unvaccinated monkeys we’d dosed with Ebola and Azrael. I’d ridden the whole roller coaster of emotions, from worry at the beginning, to sorrow as I mourned the loss of one monkey after another, relief as I talked to Lottie and she told me she’d put on three more pounds and learned to cook an omelette, and finally, euphoria. Because by day twenty-two, all the unvaccinated monkeys had died except the control. Of the six vaccinated monkeys, only one had gotten sick—number four, the marmoset we’d protected against Ebola only and then infected with Azrael. Monkey four had shown symptoms of smallpox on day thirteen and was currently sitting miserably in his cage, covered in pustule

