Infections causing gastroenteritis can be spread by contaminated food or water or through an infected food handler. Individuals who are symptomatic with gastroenteritis can spread illness to others by touching handrails, elevator buttons, and shared utensils, as well as through direct intimate contact with others while they are ill.

Infected birds shed flu virus in their saliva, nasal secretions, and feces. Susceptible birds become infected when they have contact with contaminated excretions or surfaces that are contaminated with excretions. It is believed that most cases of bird flu infection in humans have resulted from contact with infected poultry or contaminated surfaces. See similar questions...

Sore eyes can spread by contact of contaminated hands with the eyes (hand to eye contact ) or through touching of eyes with hands which got into contact with contaminated surfaces or objects. It can also spread through droplets from a person with sore eyes who also has a runny nose or cough. See similar questions...

Anybody can get MRSA, but MRSA infections are by far more common among persons in hospitals and healthcare facilities. Less often, MRSA can be acquired in the community. It has been associated with recent antibiotic use, sharing contaminated items, having recurrent skin diseases, and living in crowded settings. Outbreaks of MRSA have been reported among participants in contact sports such as wrestling and rugby. See similar questions...

Infected birds shed flu virus in their saliva, nasal secretions, and feces (droppings). Susceptible birds become infected when they have contact with contaminated excretions or surfaces that are contaminated with excretions. See similar questions...

It is believed that most cases of bird flu infection in humans have resulted from contact with infected poultry or contaminated surfaces. There is no evidence of human-to-human transmission so far. See similar questions...

Although the exact mechanism is not known, CWD is believed to be spread by the agent responsible both by direct animal-to-animal contact and indirectly via the soil or other contact surfaces. It is thought that the most common mode of transmission from an infected animal is via saliva, feces, and urine. See similar questions...

The anthrax spores can spread by inhalation (the most fatal form), ingestion or contact with an abrasion, cut or open wound on the skin. Only eight thousand (8,000) spores, roughly enough to cover a snowflake, are needed to cause pulmonary disease when incubated in the warm and humid conditions of the human lung. See similar questions...

The main way that influenza viruses are spread is from person to person in respiratory droplets of coughs and sneezes. 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. Adults may be able to infect others beginning 1 day before getting symptoms and up to 7 days after getting sick. See similar questions...

AIDS is spread when blood, semen or vaginal secretions of an infected persons comes in contact with blood or mucous membranes of a healthy person. The virus is spread by : See similar questions...

When a child in elementary school is found to have head lice, or a parent calls us to tell us their child had head lice, all students in the classroom are immediately screened for head lice. Letters are sent home to parents so they can check their child's head for signs of lice for the next several days. Children who have had head lice are re-screened upon return to school before they are allowed back into class to ensure that the treatment has been properly administered. See similar questions...

TB is spread through the air when an affected person coughs, sings, laughs, yawns, sneezes or even talks. If another person inhales the bacterium, one of two outcomes is probable: You will become infected with latent TB but will not feel sick because your body's defenses are currently preventing you from becoming sick. People most at risk of catching TB disease are those who (on a regular basis) spend time with someone who has active TB disease. See similar questions...

Infected birds shed influenza virus in their saliva, nasal secretions, and feces. Susceptible birds become infected when they have contact with contaminated excretions or with surfaces that are contaminated with excretions or secretions. See similar questions...

Surface molds spread by eating the building materials they come in contact with. When surface molds are disturbed they produce mold spores, which become airborne. Airborne mold spores are (similar to seeds), they reproduce more spores. Another requirement for mold to grow is moisture, although some mold species can obtain that moisture from moist air when the relative humidity is above 70%. See similar questions...

Meningococcal disease is spread through air droplets and by direct contact with secretions from infected persons (e.g., through coughing, kissing). Teenagers and college students can reduce the risk of transmitting the disease by not sharing personal items (e.g., utensils, waters bottles, drinking glasses) and by being immunized. See similar questions...

Infected birds shed flu virus in their saliva, nasal secretions, and feces. Susceptible birds become infected when they have contact with contaminated excretions or surfaces that are contaminated with excretions. It is believed that most cases of bird flu infection in humans have resulted from contact with infected poultry or contaminated surfaces. Question: What is the risk to humans from bird flu? The risk of H5N1 is considered quite low for most people. See similar questions...

Answer: After emergence from their host tree, emerald ash borer adults fly to nearby ashes to mate and lay eggs. In addition, humans can contribute to the rapid spread of this beetle. The Ohio and Maryland infestations have been traced to infested nursery stock imported from Michigan before the insect was discovered. Transport of firewood and other ash materials from infested areas is another way of artificial propagation. See similar questions...