How do the spread of diseases that depend on air differ from spread of diseases from person-to-person contact?
346948
Not sure what you're looking for besides the obvious....\n\nAirborne spread is much faster than person-to-person.  For a person-to-person disease, the infected person has to come in physical contact with someone else to spread the disease.  For airborne transmission, the infected person just needs to have been in the same room.
878754
Germs from the other person are in that smoke. just imagine if that person had TB which is highly contagious.
276657
Bird flu cannot go from one person to another, in fact only people to have died of bird flu have worked directly in the bird industry. If the bird flu mutates then it will be transmittable between people.
318429
Mumps is a human disease (human reservoir). While persons with asymptomatic or nonclassical infection can transmit the virus, no carrier state is known to exist. Transmission of mumps occurs through airborne transmission or direct contact with infected droplet nuclei or saliva.  \n\nMumps contagiousness is similar to that of influenza and rubella, but less than that for measles or chickenpox. The infectious period is considered to be from 3 days before to the 4th day of active disease; virus has been isolated from saliva 7 days before to 9 days after onset of parotitis. Mumps incidence peaks predominantly in winter-spring, but the disease is endemic year-round.
340691
Well, I guess it depends on what kind of illness.  Is it contagious?  Otherwise, most people will be sympathetic to someone who is sick.
401656
Damage to the human organism is dependent on frequency, distance to the source, and transmit power (in Watts)\n\nSee the following:
343644
The main way that influenza viruses are spread is from person to person in respiratory droplets of coughs and sneezes. (This is called "droplet spread.") This can happen when droplets from a cough or sneeze of an infected person are propelled (generally up to 3 feet) through the air and deposited on the mouth or nose of people nearby. Though much less frequent, the viruses also can be spread when a person touches respiratory droplets on another person or an object and then touches their own mouth or nose (or someone else’s mouth or nose) before washing their hands.
128140
It is an ancient disease that usually involves the respratory system, specially the lungs. In symptomatic patiants who have caugh and sputum, and are not on medical therapy the bacteria (mycobacterium tuberclosis) spreads in the air and floats for a while if you inhale the air immediatly some bacteria may enter your lungs. If your immunity compromises the bacteria may find the opportunity to produce disease in your body.\nOnly in very close and prolonged contacts with patiants infection results. so do not worry too much.
563001
False:\n\nCJD cannot be transmitted through the air or through touching or most other forms of casual contact. Spouses and other household members of sporadic CJD patients have no higher risk of contracting the disease than the general population. However, exposure to brain tissue and spinal cord fluid from infected patients should be avoided to prevent transmission of the disease through these materials.
16240
From Wikipedia:\n\nOne possible explanation for "flu season" is that, because people are indoors more often during the winter, they are in close contact more often, and this promotes transmission from person to person. Another is that cold temperatures lead to drier air, which may dehydrate mucous, preventing the body from effectively expelling virus particles. The virus may also linger longer on exposed surfaces (doorknobs, countertops, etc.) in colder temperatures. Increased travel and visitation due to the Christmas season may also play a role.
754638
Quite a lot of people have bad allergies (to things like dust, pollen, and animal dander). Also, influenza is easily passed around, simply by being around a sick person's sneeze, or touching a faucet in a public bathroom (This applies to seasonal colds as well).
108656
Well, since 80% of all infections are spread through direct contact, I'd suggest that you get in the habit of washing your hands frequently and well.  Other than that, maintain a healthy weight through a good diet and exercise; stay away from behaviors clearly linked to increased risk (like smoking), etc.
695806
the spread of illness is best limited by washing  your hands in soap and water. \n although you have most likely been raised to cover your nose and or mouth with your hand when you cough or sneeze and you don't have a tissue. the real best thing to do in that situation is to cover your mouth nose with your sleeve. that way the droplets are not on your hands and you don't pass them around .\n as well since they are not in contact with your body they live not as long no body heat. \n next people that are sick should stay home. \n don't be stupid and try to win some silly prize for perfect attendance when your really sick . the award those people should get is called the i don't care about others so i come to work school and make everyone sick haw haw. \n again the best thing to do is to wash hands with soap and water and wash for 1 minute at least.
17476
Spread by virus-infected droplets that are coughed or sneezed into the air, the flu is contagious. People infected with the flu are contagious as long as they show symptoms (most of the time that means about 1 week for adults, but for children it can mean up to 2 weeks).
564888
Well, suppose you have contracted a highly contagious disease, everything you touch becomes a bomb. Also, commit a crime and then leave your fingerprints about.
340746
disease that can be transmitted globally
1124924
Here's some more info about how colds are caught:\n\nThe viruses are transmitted from person to person by droplets from coughs or sneezes. The droplets or droplet nuclei are either inhaled directly, or transmitted from hand to hand via handshakes or objects such as door knobs, and then introduced to the nasal passages when the hand touches the nose or eyes.\n\nThe virus takes advantage of sneezes and coughs to infect the next person before it is defeated by the body's immune system. Sneezes expel a significantly larger concentration of virus "cloud" than coughing. The "cloud" is partly invisible and falls at a rate slow enough to last for hours—with part of the droplet nuclei evaporating and leaving much smaller and invisible "droplet nuclei" in the air. Droplets from turbulent sneezing or coughing or hand contact also can last for hours on surfaces, although less virus can be recovered from porous surfaces such as wood or paper towel than non-porous surfaces such as a metal bar. A sufferer is most infectious within the first three days of the illness. Symptoms, however, are not necessary for viral shedding or transmission, as a percentage of asymptomatic subjects exhibit viruses in nasal swabs, likely controlling the virus at concentrations too low for them to have symptoms.