There are quite a few natural antibacterial and antiviral properties of echinacea that make it a great natural remedy for West Nile Virus. It is a known immune system stimulant, meaning that it increases the production of white blood cells – the body’s first line of defense against any outside pathogens or agents. Furthermore, the soothing and anti-inflammatory properties of echinacea can help your body relax and focus its energy on eliminating the viral infection, rather than managing your symptoms. Echinacea tea is a very popular form of this herb, but there are many variations and decoctions that you can try.