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English, 24.09.2019 05:40, rafaelys6354

Vaccines were developed to provide immunity to a viral infection. which of the following is a likely hypothesis of why the smallpox vaccine is no longer given?
smallpox only infects people who have not been vaccinated for chicken pox
the smallpox vaccine was given for a long period of time and the disease no longer exists
smallpox only exists in some parts of the world so there is no need to vaccinate everyone
the smallpox virus has mutated and so the vaccine is no longer effective

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Biology, 13.07.2019 19:00, Acemirisa

Vaccines were developed to provide immunity to a viral infection. which of the following is a likely hypothesis of why the smallpox vaccine is no longer given?

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Biology, 24.07.2019 11:00, gabriellarose2930

Smallpox is a virus with a fatality rate of about 30%, and those that survive the disease have terrible scarring and lingering problems. edward jenner is famous for a now notorious experiment in which he developed the first vaccine for smallpox. in the experiment jenner first exposed a small boy to cowpox, which is relatively harmless. the boy got cowpox and recovered. jenner then exposed the boy to smallpox by walking him through a hospital ward. the boy lived. which conclusion is not valid? a) cowpox virus can be used as a vaccine against smallpox. b) immunity to cowpox virus also grants immunity to smallpox. c) cowpox virus and smallpox virus are probably very similar. d) smallpox virus would be a good choice for a vaccine against cowpox.

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Chemistry, 03.09.2019 18:30, Circe7527

smallpox is a virus with a fatality rate of about 30%, and those that survive the disease have terrible scarring and lingering problems. edward jenner is famous for a now notorious experiment in which he developed the first vaccine for smallpox. in the experiment jenner first exposed a small boy to cowpox, which is relatively harmless. the boy got cowpox and recovered. jenner then exposed the boy to smallpox by walking him through a hospital ward. the boy lived. which conclusion is not valid? a) cowpox virus can be used as a vaccine against smallpox. b) immunity to cowpox virus also grants immunity to smallpox. c) cowpox virus and smallpox virus are probably very similar. d) smallpox virus would be a good choice for a vaccine against cowpox.

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Biology, 01.10.2019 01:00, coolvic345

By 1796 it had been observed that milk maids who had been exposed to cowpox did not succumb to the deadly plague of smallpox that was ravishing both europe and britain. from this observation, edward jenner was able to construct the world's first successful vaccine. which of the following statements best fits jenner's hypothesis that led him to his creation of the vaccine? a. if exposure to cowpox gives immunity to smallpox in milkmaids, then exposure to cowpox should give immunity to smallpox in other individuals as well.b. exposure to smallpox always gives immunity to cowpox.c. cowpox and smallpox are caused by the same microorganism.d. if milkmaids exposed to cowpox are immune to smallpox, then cowpox and smallpox are the same disease.e. if exposure to cowpox gives immunity to smallpox in milkmaids, then milkmaids have a natural immunity and their blood should be used to develop a smallpox vaccine.

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