As Terran, I like to run either marines/marauders/medivacs or marines/tanks, usually with a couple vikings for anti-air. In Wings of Liberty Fungal Growth was obnoxious but not a serious threat: either my medivacs healed through it or my tanks cleaned up ground troops anyway.
In Heart of the Swarm, however, Fungal Growth + Blinding Cloud really ruins my day. Trapped by Fungal Growth, my units can't get out of the Blinding Cloud, so my marines only manage to shoot once or twice before dying to zerglings/banelings, and my tanks are completely useless.
How can I counter this combo? Do I need to change my build composition?