it's like a domino effect. >> reporter: tanaka says there needs to be a balance between providing medical care and presenting patients from the virus. home care doctors don't have access to the same presentative equipment they would receive in hospitals. so they've had to improvise. if a patient gets a sudden fever, he pulls out gear he himself made out of a rain coat. the group representing home care professionals says doctotors shouldn't h have to comee up wi their ownwn solutions. >> translator: i think it is the role off the govovernmentt and administration to come up with standards f for how to deaeal w the v virus we've never ep coununtered before and present that to home care doctors. >> reporter: as the virus continues to pose new challenges, doctors like tanaka hope they have the tools they need to keep themselves and their patients safe. gnocchi haruka, nhk world, tokyo. >>> japanese airline, all nippon airways says it's making face masks mandatory. passengers will have to wear them on planes and at the airport. they may deny boarding to anyone not wearing a mask or with a fever