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This community is for discussions relating to Swine Flu. Links to outside news sources will be permitted in this community to exchange information and keep up with this changing event.
For most airborne diseases, transmission occurs via aerosols in the from of respiratory droplets. If the density of the virus is great enough, will the virus/respiratory droplet not be able to stay in the air? (obeying the laws of buoyancy) For instance, if the respiratory droplet was considered a boat and its "cargo" (the virus) was dense enough so that the average density of the both was greater than the than the fluid (air) would it cease to be buoyant?