Оценка:
Опубликованно: 01.12.1996.
Язык: Английский
Уровень: Средняя школа
Литературный список: Нет
Ссылки: Не использованы
  • Эссе 'Smallpox and Anthrax', 1.
Фрагмент работы

Smallpox is a very serious infectious virus. It has about a 30% fatality rate. There is no treatment other than a vaccine that wears off in approximately 5 years. There are two types that have effects on humans. Variola Major and Variola Minor. Variola Major is more common and more lethal. Smallpox has been eradicated except in two labs; one in Russia and one in the United States. Smallpox comes from a variola virus that emerged in humans thousands of years ago. Right now our government is concerned that it could be used for bio-terrorism. Smallpox is generally transferred by face-to-face…

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