But psychosis caused by drugs can be prevented. The events of Judgment Day were ultimately not prevented, but merely postponed. Pinworm infection cannot be totally prevented under most circumstances. Thereby, anonymous misuse of shell companies shall be prevented. However, he prevented further eastward expansion. However, he was also prevented from landing. An epidemic, however, prevented any war. However, bad health prevented him from attending. However, legal action prevented the move. His final illness, however, prevented their completion. Bad weather prevented her from attending, however. His death, however, prevented the reconstruction. However, extensive analysis was prevented by limited observations. In Cambodia, however, political turmoil prevented such efforts. However, it initially prevented directors from casting her in films.