2. How do catechins work against viruses?
Catechins affix to the cell joints and help to inhibit the virus from connecting cells.
(Anti-virus effects, Japanese Society of Catechinology, Link to the page)
3. Epidemiological Research Update
This research implies 1-5 cups/day of green tea consumption help inhibiting influenza infection in children.
(Park M et al. Green Tea Consumption Is Inversely Associated with the Incidence of Influenza Infection among Schoolchildren in a Tea Plantation Area of Japan, The Journal of Nutrition, Vol. 141, Issue 10, October 2011, P866, Link to this research paper)