almost $600. just to get another covid test. reporter: another change that travelers may start seeing at some of the major international hubs like jfk or newark airport or hartsfield-jackson in atlanta, is that there s going to be increased biosurveillance or health screening at some of these airports. so they re going to take pools of samples from some passengers coming from certain international locations. and the cdc and a company called express check will be collaborating to see if the omicron variant is entering, why not of community spread we might be able to expect. so the real change that people need to pay attention to right now is that testing requirement. plan ahead, make sure that you have the money in case the test is a costly one, depending on your location, jose. antonia hilton, thank you so much. dr. irwin redlener is the founding director of the national center for disaster preparedness. he s also a senior research scholar at columbia university s earth institute a