Vaccination Services WHA can deliver on-site vaccination services, in-clinic or through our popular pharmacy voucher program. Vaccinations can include: Influenza (flu) vaccinations Hepatitis A vaccinations Hepatitis B vaccinations Twinrix (Hepatitis A & Hepatitis B vaccination) Whooping Cough (Adult Tetanus/Diphtheria/Pertussis) COVID-19 Want to know more? 1300 552 722 Know what you need? Enquire NOW