Even if ebola does not cause sneezing. People with ebola can also get a cold or flu.
That's a good point. Can you imagine the microdroplets being sprayed from an Ebola-sufferer who has the flu? Worse, since Ebola has "flu like symptoms", they will be masked by somebody who has the actual flu, and this person will be spraying everybody in the office with their body fluids, and nobody will give much concern, thinking it's the 'ordinary flu'.
Now imagine a person who has the flu, Ebola, and HIV, coughing, sneezing, and engaging in risky behavior. A trifecta!!! Quarantine anybody?
This is why, if ebola is not taken care of by flu season, that it will become a much worse problem in the US.
It is not realistic to be able to quarantine everyone with the flu, as our healthcare system would not be able to handle monitoring this many people for 21 days after they no longer have the flu. This will result in many people who have ebola being mistaken for having the flu, and being allowed to be in public and to spread the disease