For Vaccine Safety
Posted 06-19-2017 at 10:49 PM by katjonjj
Quote:
Originally Posted by suzy_q2010
All of those vaccines contain weakened versions of the wild viruses.
Measles and mumps vaccines do not have shedding at all. Rubella sheds too little to infect others.
vaccine-shedding - The Immunization Partnership
Chickenpox vaccine:
https://www.cdc.gov/vaccines/pubs/pi...l#transmission
"Available data suggest that transmission of varicella vaccine virus is a rare event. Instances of suspected secondary transmission of vaccine virus have been reported, but in few instances has the secondary clinical illness been shown to be caused by vaccine virus. Several cases of suspected secondary transmission have been determined to have been caused by wild varicella virus. In studies of household contacts, several instances of asymptomatic seroconversion have been observed. It appears that transmission occurs mainly when the vaccinee develops a rash. If a vaccinated person develops a rash, it is recommended that close contact with persons who do not have evidence of varicella immunity and who are at high risk of complications of varicella, such as immunocompromised persons, be avoided until the rash has resolved.
Transmission of varicella due to vaccine virus from recipients of zoster vaccine has not been reported."
The influenza injection vaccine is killed virus. It cannot shed. The nasal mist:
http://www.medscape.com/viewarticle/771217_2
"Importantly, secondary transmission from a person who recently received the LAIV [live attenuated influenza vaccine]that resulted in clinically important illness has never been reported in the medical literature,[11] and to date there has been only 1 documented episode of LAIV virus transmission, which occurred in a day care attendee as part of a placebo-controlled LAIV trial."
Rotavirus:
https://www.ncbi.nlm.nih.gov/pubmed/18922486
"Immunocompromised contacts should be advised to avoid contact with stool from the immunised child if possible, particularly after the first vaccine dose for at least 14 days. Since the risk of vaccine transmission and subsequent vaccine-derived disease with the current vaccines is much less than the risk of wildtype rotavirus disease in immunocompromised contacts, vaccination should be encouraged."
So your allegation that people who receive live virus vaccines shed virus for "weeks to months" is false, with the exception of two weeks for rotavirus.
What are the real recommendations?
Immunocompromised patients can receive certain vaccines themselves, depending on their conditions. Cancer patients are encouraged to take the flu vaccine injection, for example, though it may not work as well.
Immunocompromised persons should not take live virus vaccines themselves. Contacts can and should be vaccinated, because the risk to the immunocompromised person from the disease is greater than the risk of the vaccine.
Immunocompromised patients should not change or handle diapers from infants that receive the rotavirus vaccine for at least two weeks.
Immunocompromised patients should not have contact with persons who receive oral polio vaccine (not used in the US) or smallpox vaccine (not routinely given anywhere in the world).
Contacts of immunocompromised patients can and should get other vaccines, including MMR, rotavirus, and chickenpox. If a person who has had chickenpox vaccine develops a rash, the patient should avoid contact until the rash clears.
https://www.cancer.org/treatment/tre...treatment.html
Measles and mumps vaccines do not have shedding at all. Rubella sheds too little to infect others.
vaccine-shedding - The Immunization Partnership
Chickenpox vaccine:
https://www.cdc.gov/vaccines/pubs/pi...l#transmission
"Available data suggest that transmission of varicella vaccine virus is a rare event. Instances of suspected secondary transmission of vaccine virus have been reported, but in few instances has the secondary clinical illness been shown to be caused by vaccine virus. Several cases of suspected secondary transmission have been determined to have been caused by wild varicella virus. In studies of household contacts, several instances of asymptomatic seroconversion have been observed. It appears that transmission occurs mainly when the vaccinee develops a rash. If a vaccinated person develops a rash, it is recommended that close contact with persons who do not have evidence of varicella immunity and who are at high risk of complications of varicella, such as immunocompromised persons, be avoided until the rash has resolved.
Transmission of varicella due to vaccine virus from recipients of zoster vaccine has not been reported."
The influenza injection vaccine is killed virus. It cannot shed. The nasal mist:
http://www.medscape.com/viewarticle/771217_2
"Importantly, secondary transmission from a person who recently received the LAIV [live attenuated influenza vaccine]that resulted in clinically important illness has never been reported in the medical literature,[11] and to date there has been only 1 documented episode of LAIV virus transmission, which occurred in a day care attendee as part of a placebo-controlled LAIV trial."
Rotavirus:
https://www.ncbi.nlm.nih.gov/pubmed/18922486
"Immunocompromised contacts should be advised to avoid contact with stool from the immunised child if possible, particularly after the first vaccine dose for at least 14 days. Since the risk of vaccine transmission and subsequent vaccine-derived disease with the current vaccines is much less than the risk of wildtype rotavirus disease in immunocompromised contacts, vaccination should be encouraged."
So your allegation that people who receive live virus vaccines shed virus for "weeks to months" is false, with the exception of two weeks for rotavirus.
What are the real recommendations?
Immunocompromised patients can receive certain vaccines themselves, depending on their conditions. Cancer patients are encouraged to take the flu vaccine injection, for example, though it may not work as well.
Immunocompromised persons should not take live virus vaccines themselves. Contacts can and should be vaccinated, because the risk to the immunocompromised person from the disease is greater than the risk of the vaccine.
Immunocompromised patients should not change or handle diapers from infants that receive the rotavirus vaccine for at least two weeks.
Immunocompromised patients should not have contact with persons who receive oral polio vaccine (not used in the US) or smallpox vaccine (not routinely given anywhere in the world).
Contacts of immunocompromised patients can and should get other vaccines, including MMR, rotavirus, and chickenpox. If a person who has had chickenpox vaccine develops a rash, the patient should avoid contact until the rash clears.
https://www.cancer.org/treatment/tre...treatment.html
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