My husband & I are both US citizens. We will arrive in Pudong International Airport, Shanghai

on March 16 from the Philippines. We will be going on a cruise that starts from Wusungkou Cruise Terminal in Shanghai on March 17-22, 2017 going to Busan, South Korea & Kumamoto, Japan. We will be departing from Pudong International Airport on March 22, 2017. I just want confirmation we are eligible for the 144-Hour Visa Free Transit. Please advise what we need to do to once we get to the airport.
Also, do you know if we need a yellow fever vaccination or certificate? As mentioned, we will be coming from the Philippines. I was told as long as we're not coming from Brazil, Aruba & other countries from South America, we don't need it. Please confirm as well. Thanks.