China has administered more than one billion doses of its homegrown COVID-19 vaccines, the majority of which were developed by local companies Sinovac and Sinopharm. So what do we know about them?
- Clinical researcher, Murdoch Children's Research Institute
Los datos de estudios recientes sobre la administración mixta de vacunas sugieren que puede proporcionar niveles de anticuerpos más altos que dos dosis de un solo fabricante.
One study found antibody levels were significantly higher in people who received one dose of AstraZeneca then a Pfizer booster dose.
The COVID-19 variant responsible for Victoria’s latest outbreak is one of three Indian variant sub-types, which spreads more easily than the original strain. Here’s what we know so far.



