We look forward to seeing you on your upcoming flight to China. As you plan for upcoming travel, we’re committed to providing the information you need to be prepared, safe and secure upon arrival. Beginning November 6th, all passengers flying from the United States to China are required to have a negative certificate for COVID PCR test in addition to a negative serum IgM Antibody test taken within 48 hours of departure. Chinese passengers must upload both PCR and IgM test result to WeChat in order to receive a green health code with the “HS” mark required for boarding. Non-Chinese passengers must email the scanned copies of their negative PCR, IgM test results, and signed health declaration form to the Chinese Embassy/Consulate based on consular district . For clarity, Delta’s current U.S. to China operation with a technical stopover in Seoul is considered a direct flight, no additional testing will be required in Korea. If passengers transit in another country prior to entering China, a second round of PCR and IgM test must be taken in that other country and submitted 48 hours prior to departure in that other country of transit. For additional information, please visit Embassy of PRC website or contact the embassy/consulate directly. If you still plan to travel, know that we’ve raised the standard for safer travel by putting measures in place across every step of the journey to help keep you healthy and give you more peace of mind. If you no longer wish to travel to China, please let us know by modifying or canceling your trip via My Trips on delta.com prior to your scheduled flight. If you choose to cancel, rest assured the value of your ticket won’t be lost. Your original ticket number becomes an eCredit and may be used for future travel with Delta. Miles redeemed toward SkyMiles award travel may be redeposited. Taking care of you is at the center of everything we do. To help you make informed decisions regarding your travel, the latest information on COVID-19 can be found on Coronavirus Update Center. Thank you for choosing Delta.
和delta联系了，肯定了以上信息。然而大使馆的那个通知应该是11.6开始上传两种结果。看样子大使馆的时间太过于模糊，航空公司直接就从11.6开始实施了。
只能退了11.6 的机票。
赶紧跟delta联系说清楚啊