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breakthrough – n. a sudden increase in knowledge, understanding, etc. : an important discovery that happens after trying for a long time to understand or explain something
antibody – n. medical : a substance produced by the body to fight disease
immune system – n. medical : the system that protects your body from diseases and infections
abort – v. to stop something before it is completed because of problems or danger : to stop in the early stages <abort a disease>
actually – adv. in act or in fact
bode – v. to indicate by signs
stage – n. a period or step in a process, activity, or development
beneficial – adj. producing good or helpful results or effects : producing benefits
