21. During the colonial years, many died of newly introduced infectious diseases, to which they had no natural immunity . 22. Dodo's cold has now spread amongst the Monoid and human populations, but regrettably, they have little natural immunity . 23. And poisoned bait, he says, can be ineffective because mice may develop a natural immunity to the poison. 24. They suffered a high rate of fatalities when exposed to Eurasian diseases, for which they had no natural immunity . 25. McLin said she looked at studies which suggest that breast-fed infants have more natural immunity against diseases and infections. 26. Their leader, Marcus Kane, tells Sinclair the truth : there is no cure, only people with a natural immunity . 27. If you understand how natural immunity happens, you can duplicate it through making a vaccine that imitates natural immunity . 28. If you understand how natural immunity happens, you can duplicate it through making a vaccine that imitates natural immunity. 29. Finding how to duplicate the apparent natural immunity of these lucky few is a crucial goal of AIDS research. 30. Growing up in the shaky environs of San Francisco, choreographer Margaret Jenkins developed a kind of natural immunity to earthquakes.
