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''"Vivotif" redirects here. Not to be confused with Vi capsular polysaccharide vaccine. For an overview of vaccines against typhoid fever, see Typhoid vaccine.'' Ty21a is a live attenuated bacterial vaccine that protects against typhoid. First licensed in Europe in 1983 and in the USA in 1989, it is an orally administered, live-attenuated Ty2 strain of S. Typhi in which multiple genes, including the genes responsible for the production of Vi, have been mutated chemically so as to render it harmless but nevertheless immunogenic. It is one of two typhoid vaccines currently recommended by the World Health Organization (the other being the Vi capsular polysaccharide vaccine). The vaccine is given by mouth. The vaccine is presented either as enteric coated capsules or a liquid suspension. The vaccine must be stored at 2 to 8 °C, but will retain its potency for 14 days at 25°C.〔 == Efficacy and duration of protection == The vaccine offers a statistically significant protection for the first seven years, with between 62% to 77% effectiveness at year seven. The vaccine is most commonly used to protect travelers to endemic countries, but some agencies claim that the vaccine could be used in large scale public prevention programs.〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「''"Vivotif" redirects here. Not to be confused with Vi capsular polysaccharide vaccine. For an overview of vaccines against typhoid fever, see Typhoid vaccine.'''''Ty21a''' is a live attenuated bacterial vaccine that protects against typhoid. First licensed in Europe in 1983 and in the USA in 1989, it is an orally administered, live-attenuated Ty2 strain of S. Typhi in which multiple genes,including the genes responsible for the production of Vi, have been mutated chemically so as to render it harmless but nevertheless immunogenic. It is one of two typhoid vaccines currently recommended by the World Health Organization (the other being the Vi capsular polysaccharide vaccine). The vaccine is given by mouth. The vaccine is presented either as enteric coated capsules or a liquid suspension. The vaccine must be stored at 2 to 8 °C, but will retain its potency for 14 days at 25°C.== Efficacy and duration of protection ==The vaccine offers a statistically significant protection for the first seven years, with between 62% to 77% effectiveness at year seven. The vaccine is most commonly used to protect travelers to endemic countries, but some agencies claim that the vaccine could be used in large scale public prevention programs.」の詳細全文を読む ''"Vivotif" redirects here. Not to be confused with Vi capsular polysaccharide vaccine. For an overview of vaccines against typhoid fever, see Typhoid vaccine.'' Ty21a is a live attenuated bacterial vaccine that protects against typhoid. First licensed in Europe in 1983 and in the USA in 1989, it is an orally administered, live-attenuated Ty2 strain of S. Typhi in which multiple genes, including the genes responsible for the production of Vi, have been mutated chemically so as to render it harmless but nevertheless immunogenic. It is one of two typhoid vaccines currently recommended by the World Health Organization (the other being the Vi capsular polysaccharide vaccine). The vaccine is given by mouth. The vaccine is presented either as enteric coated capsules or a liquid suspension. The vaccine must be stored at 2 to 8 °C, but will retain its potency for 14 days at 25°C.〔 == Efficacy and duration of protection == The vaccine offers a statistically significant protection for the first seven years, with between 62% to 77% effectiveness at year seven. The vaccine is most commonly used to protect travelers to endemic countries, but some agencies claim that the vaccine could be used in large scale public prevention programs.〔 抄文引用元・出典: フリー百科事典『 ''Ty21a is a live attenuated bacterial vaccine that protects against typhoid. First licensed in Europe in 1983 and in the USA in 1989, it is an orally administered, live-attenuated Ty2 strain of S. Typhi in which multiple genes,including the genes responsible for the production of Vi, have been mutated chemically so as to render it harmless but nevertheless immunogenic. It is one of two typhoid vaccines currently recommended by the World Health Organization (the other being the Vi capsular polysaccharide vaccine). The vaccine is given by mouth. The vaccine is presented either as enteric coated capsules or a liquid suspension. The vaccine must be stored at 2 to 8 °C, but will retain its potency for 14 days at 25°C.== Efficacy and duration of protection ==The vaccine offers a statistically significant protection for the first seven years, with between 62% to 77% effectiveness at year seven. The vaccine is most commonly used to protect travelers to endemic countries, but some agencies claim that the vaccine could be used in large scale public prevention programs.">ウィキペディア（Wikipedia）』 ■''Ty21a is a live attenuated bacterial vaccine that protects against typhoid. First licensed in Europe in 1983 and in the USA in 1989, it is an orally administered, live-attenuated Ty2 strain of S. Typhi in which multiple genes,including the genes responsible for the production of Vi, have been mutated chemically so as to render it harmless but nevertheless immunogenic. It is one of two typhoid vaccines currently recommended by the World Health Organization (the other being the Vi capsular polysaccharide vaccine). The vaccine is given by mouth. The vaccine is presented either as enteric coated capsules or a liquid suspension. The vaccine must be stored at 2 to 8 °C, but will retain its potency for 14 days at 25°C.== Efficacy and duration of protection ==The vaccine offers a statistically significant protection for the first seven years, with between 62% to 77% effectiveness at year seven. The vaccine is most commonly used to protect travelers to endemic countries, but some agencies claim that the vaccine could be used in large scale public prevention programs.">ウィキペディアで「''"Vivotif" redirects here. Not to be confused with Vi capsular polysaccharide vaccine. For an overview of vaccines against typhoid fever, see Typhoid vaccine.''Ty21a''' is a live attenuated bacterial vaccine that protects against typhoid. First licensed in Europe in 1983 and in the USA in 1989, it is an orally administered, live-attenuated Ty2 strain of S. Typhi in which multiple genes,including the genes responsible for the production of Vi, have been mutated chemically so as to render it harmless but nevertheless immunogenic. It is one of two typhoid vaccines currently recommended by the World Health Organization (the other being the Vi capsular polysaccharide vaccine). The vaccine is given by mouth. The vaccine is presented either as enteric coated capsules or a liquid suspension. The vaccine must be stored at 2 to 8 °C, but will retain its potency for 14 days at 25°C.== Efficacy and duration of protection ==The vaccine offers a statistically significant protection for the first seven years, with between 62% to 77% effectiveness at year seven. The vaccine is most commonly used to protect travelers to endemic countries, but some agencies claim that the vaccine could be used in large scale public prevention programs.」の詳細全文を読む ''Ty21a''' is a live attenuated bacterial vaccine that protects against typhoid. First licensed in Europe in 1983 and in the USA in 1989, it is an orally administered, live-attenuated Ty2 strain of S. Typhi in which multiple genes,including the genes responsible for the production of Vi, have been mutated chemically so as to render it harmless but nevertheless immunogenic. It is one of two typhoid vaccines currently recommended by the World Health Organization (the other being the Vi capsular polysaccharide vaccine). The vaccine is given by mouth. The vaccine is presented either as enteric coated capsules or a liquid suspension. The vaccine must be stored at 2 to 8 °C, but will retain its potency for 14 days at 25°C.== Efficacy and duration of protection ==The vaccine offers a statistically significant protection for the first seven years, with between 62% to 77% effectiveness at year seven. The vaccine is most commonly used to protect travelers to endemic countries, but some agencies claim that the vaccine could be used in large scale public prevention programs.」の詳細全文を読む スポンサード リンク
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