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>First Live Ebola Vaccine that “Sheds”
The Ebola vaccine is a live virus vaccine that is administered as a single injection into a muscle. The vaccine contains a weakened strain of the vesicular stomatitis virus (VSV) that has been altered to contain a gene from the Ebola virus. As of August 2023, the FDA has approved Merck’s ERVEBO (Ebola Zaire Vaccine, Live) for use in children 12 months and older. ERVEBO is a replication-competent, live, attenuated recombinant vesicular stomatitis virus (rVSV) vaccine.
The “Ervebo” vaccine, as it’s known, reportedly has a shedding rate of 31%, according to the FDA package insert. This shedding refers to the vaccine virus’s ability to be transmitted to others, including family members or casual contacts. Critics like Bartlett highlight the risks associated with such shedding, particularly when the general public remains unaware of potential exposure.
The FDA report indeed confirms that vaccine virus RNA was detectable in some participants’ urine or saliva, with the highest shedding occurring on Day 7 post-vaccination and ceasing by Day 28. The highest shedding rate was observed in participants aged 12 to 17 years.
From the FDA package insert:
“Shedding of vaccine virus into the urine or saliva was evaluated in 359 participants enrolled in 8 clinical studies who were vaccinated with ERVEBO or lower dose formulations. Vaccine virus RNA was detected by RT-PCR in the urine or saliva of some participants at timepoints ranging from Day 1 through Day 14 postvaccination. In the 3 studies that assessed shedding at Day 28, no samples tested positive. In Study 6, 31.7% (19/60) of participants 12 months through 17 years of age enrolled in a substudy shed vaccine virus in saliva following vaccination. Viral shedding was greatest on Day 7 and declined thereafter, with no shedding detected after Day 28. Vaccine virus RNA was detected by RT-PCR in vesicular fluid samples from some participants. In one participant, a sample collected 20 days after vaccination tested positive for vaccine virus RNA by RTPCR.”
https://www.thegatewaypundit.com/2024/01/icymi-denver-health-medical-staff-receives-first-live/