Summary. 1  Many human illnesses are caused by infection with either bacteria or viruses. 2  Most bacterial diseases can be treated with antibiotics, although antibiotic-resistant strains are starting to emerge. 3  Viruses pose a challenge to the bodyâs immune system because they hide inside cells.
As the 37th president of the United States, Nixon became deeply embroiled in scandal during his second term and was left with no option but to resign from office or be impeached. In addition to serving as president, he also served one term as representative, a partial term as senator, and two terms as vice president.
Nixon's accomplishments were largely overshadowed by the scandals of the administration, and both Nixon and Vice President Spiro Agnew stepped down from office during Nixon's second term. In 1974, Nixon was succeeded by Gerald Ford, whom Nixon had chosen to succeed Agnew in 1973.