Dr Robin Youngson
In this video, Dr Robin Youngson discusses what impact the vaccine has on transmission.
From Dr Robin Youngson, retired New Zealand doctor: We know that the COVID vaccines are highly effective in preventing serious illness and death (90% reduction) but do they prevent infection and transmission? Why are we not even allowed to ask the question? Why is the medical profession silent on this hugely important question of science? Vaccine mandates are causing serious community conflict, polarisation and trauma. Before we impose such drastic measures, we ought to test out the question: Does vaccination of teachers actually protects school kids, or vaccination of health professionals actually protects patients? Is a vaccinated person who gets COVID more or less infectious that an unvaccinated person? Are we more likely to catch COVID from the population of vaccinated people, or the unvaccinated? The current scientific research might surprise you.
Paper 1: The amount of virus on swabs was about the same in infected individuals depending on whether you are vaccinated or not.
Paper 2: No difference in amount of virus in those who are fully vaccinated and those who are not vaccinated.
Paper 3. Of those that had Covid, nearly 24% were vaccinated. This suggests the vaccine isn't providing good protection against getting infected, but yes it is preventing more serious illness and deaths. This study found the level of virus in the fully vaccinated and unvaccinated was about the same.
Paper 4. In cases admitted to hospital, 71 of the cases were in fully vaccinated individuals, 130 were unvaccinated, so vaccine is not effective in preventing transmission, yet it is in preventing serious illness and death. There was no difference in viral load between vaccinated and unvaccinated individuals.
Paper 5. Of cases, 74% were fully vaccinated showing the vaccine is not effective in preventing transmission and there was no difference in viral load between vaccinated and unvaccinated. The vaccine did reduce serious illness and death.
Paper 6. The proportion of people that catch covid from the first case ("Index case"), is called the Secondary Attack Ratio (SAR). The study showed that in a household setting, the SAR is 38% in unvaccinated and 25% in vaccinated. (Not explained by Dr Robin is that the paper's results section states that from the data, this difference was not statistically significant). Also there was no significant difference in transmission from either a vaccinated or unvaccinated index case.
Link: Community transmission and viral load kinetics of the SARS-CoV-2 delta (B.1.617.2) variant in vaccinated and unvaccinated individuals in the UK: a prospective, longitudinal, cohort study - The Lancet Infectious Diseases
Paper 7. In Waterford (Ireland) 99.7% of people are fully vaccinated. They also have one of the highest rates of new covid cases in the world.
Paper 8: Across 68 countries, there was no correlation between vaccination rates and cases of Covid.
Paper 9. (not discussed in the video but listed on the youtube video references). The paper shows infections have a similar peak viral burden in vaccinated and unvaccinated. It showed with Delta variant, the vaccine effectiveness and attenuation of peak viral burden was reduced.