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Since the live, attenuated intranasal H1N1 vaccine is given in the nose, is it possible to spread the virus to others after getting the vaccine?

April 26, 2017attenuated given h1n1 intranasal live Nose possible spread vaccine virus

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Since the live, attenuated intranasal H1N1 vaccine is given in the nose, is it possible to spread the virus to others after getting the vaccine?

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The virus has been weakened in the manufacturing process so that it cannot grow well in human tissue. It also does not survive and grow in certain temperatures. The virus can grow in the nose and throat. However, once the virus reaches the lower respiratory tract, the warm temperature destroys it. Shedding of the virus can occur for up to three weeks. Most adults stop shedding virus by the third day. The virus is shed in low levels. Even if transmission were to occur, there are not enough particles to make a person ill. And since it can’t grow in the lower respiratory tract, the potential for transmission is rare.