The anatomy of a typical coronavirus can be illustrated as shown. The viral envelope (blue) is a lipid bilayer that surrounds the nucleocapsid protein and RNA genome, which together form the virus’s genetic material.

Embedded within and extending through the lipid envelope are structural proteins, including spike proteins (pink, pin-like structures) and various membrane proteins that play key roles in viral stability and infection.

One of the most important components for viral transmission is the haemagglutinin glycoprotein complex (HA), which is involved in host cell recognition and attachment.

A properly functioning haemagglutinin glycoprotein complex enables viral attachment to a host cell.

Importantly, changes in pH induce a conformational change in the HA2 protein, preparing the glycoprotein for attachment to the host cell membrane.

Without this preparatory step, the HA complex is unable to properly position itself for the transfer of viral genetic material into a nearby host cell.

The anti-viral function of pure Australian Tea Tree Oil, as reported by two independent research teams (Li and Garozzo), is believed to act on the HA complex.

Viruses contain an intricate combination of proteins and other structures embedded in their outer envelope. One of these is known as the haemagglutinin glycoprotein complex (HA complex).

The HA complex consists of several proteins that work together to facilitate binding to a host cell and the transfer of viral genetic material into the new host. While this system involves many complex interactions, the most important components are the HA1 and HA2 proteins.