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highly - infectious disease, resulted in symptoms - such as fever and spots, leading to - scarring of the face, the last recorded - case of smallpox, spread across - the entire body, put an - end to the disease, a successful - immunisation program, as far as - back 1700s, an injection - to the arm or leg, the disease was successfully - beaten worldwide, improve immunity - to a particular disease, the human  - form, develop - a vaccine, a cure against - the spread of smallpox in hummans,

Grammar and Voc. adv.U.33 Health .listening

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