By Michael Nevradakis, Ph.D., Children's Health Defense - Bill Gates, long recognized as one of the world’s foremost proponents of vaccines, raised some eyebrows at a recent talk in Australia when he admitted there are “problems” with current COVID-19 vaccines... “We also need to fix the three problems of [COVID-19] vaccines. The current vaccines are not infection-blocking. They’re not broad, so when new variants come up you lose protection, and they have very short duration, particularly in the people who matter, which are old people.”