Transmission of Neurosyphilis from Person to Person. Neurosyphilis is considered infectious but is not transmitted from person to person. Generally, a disease like this is caused by an infectious agent and not spread between people.
On May 29, 1953, Edmund Hillary and Tenzing Norgay completed the first confirmed ascent of Mount Everest, which stands 29,035 feet above sea level.
23 photos: Exploring Mount Everest. The journey to the summit of Mount Everest is a challenge that an increasing number have taken on since the summit was first reached in in 1953 by Sir Edmund Hillary and Tenzing Norgay. photos: Climber attempts Everest with assistance. 7 photos: Climber attempts Everest with assistance. Japanese mountaineer Nobukazu Kuriki, 33, from Hokkaido, is preparing to make his fifth attempt to summit Mount Everest in Nepal in September, 2015.