Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Trend curves of RSVs (relative search values) for nutrients, bioactive compounds, and herbs search queries and cumulative confirmed COVID-19 cases in the world between 1 January and 31 October2020. (A) vitamins D, K, C, zinc, selenium; (B) omega-3 fatty acids, fish oil, probiotics, lactoferrin, rutin; (C) garlic, onion, ginger, turmeric, honey; (D) echinacea, elderberry, Nigella sativa, Glycyrrhiza glabra.
