Glad to hear they are much better now.
But ... you need to figure out what made them sick, so it is not repeated ... the second time around can be worse than the first.
Is there a draft on them? Vent, fan or window?
Has there been a cat around (inside or out)? Have either of you petted or held a cat then come home and handled the chins?
Have you cleaned the carpet lately? (chemical pneumonia)
Changed your laundry detergent?
Used a new perfume or cologne?
Used an air freshener?
Brought any flowers inside?
Had visitors in?
Sprayed for bugs?
Used anything that has any odor to it at all that is new?
Any of the above could be the culprit.
Hope this helps.
Jo Ann