Dear Senator Sanders,             On 16 March 2020 I mailed a letter and package of scientific information from Johannesburg South Africa to eight members of the US Senate and seventeen members of the House of Representatives about the danger of Covid-19 and what the United States could do to reduce the impact of the approaching disaster. Unfortunately, the South African Postal Service was completely shut down two days after I posted those packages, so I believe they never arrived in Congress. Of course, you were one of the senators I included in that mailing. A copy of that letter is included on page 140 of my book Understanding Covid-19, How 500,000 American Lives Could Have Been Saved. I have enclosed one of those several documents for your review.                 Long Covid is an increasing concern and there is an essay on Long Covid in my book. There also are ...