The main route of human infection is direct contact with infected poultry or surfaces and objects contaminated with their feces or blood. To date, most human cases have occurred in rural and periurban areas where households keep small poultry flocks that roam freely, often entering homes and sharing children's outdoor play areas. Large quantities of the virus are excreted in the feces of infected poultry.

Direct contact with infected poultry, or surfaces and objects contaminated by their faeces, is presently considered the main route of human infection. To date, most human cases have occurred in rural or periurban areas where many households keep small poultry flocks, which often roam freely, sometimes entering homes or sharing outdoor areas where children play.

Although it is possible for people to become infected with avian influenza, the U.S. Centers for Disease Control and Prevention states that the virus does not spread easily from animals to humans. There have been confirmed cases of human infection in Asia, but those occurred in association with virus outbreaks in poultry, usually among people who live and work in close quarters with the animals.

In 2004, 640,000 children under 15 were newly infected with HIV, bringing the total number of children living with HIV to 2.2 million. About half of all new adult HIV infections occur among 15-24 year olds. Learn more about USAID's efforts to prevent HIV in children and young people:

Mosquitoes bite infected birds and then bite people, injecting the virus into the blood. It can't be passed from person to person or from a bird or other animal to a person.

Typically, people become infected through the bite of infected insects (most commonly, ticks and deerflies), by handling infected sick or dead animals, by eating or drinking contaminated food or water, or by inhaling airborne bacteria. Yes. Tularemia is a widespread disease in animals. About 200 human cases of tularemia are reported each year in the United States. Most cases occur in the south-central and western states.

Campylobacteriosis usually occurs in single, sporadic cases, but it can also occur in outbreaks, when a number of people become ill at one time. Most cases of campylobacteriosis are associated with handling raw poultry or eating raw or undercooked poultry meat. A very small number of Campylobacter organisms (fewer than 500) can cause illness in humans. Even one drop of juice from raw chicken meat can infect a person.

People typically develop symptoms between 3 to 14 days after they are bitten by the infected mosquito.

Ans. This virus is spread through the blood, semen, and vaginal discharges of an HIV-infected person. People can get HIV infection when they have contact with these fluids. This can happen by engaging in specific sexual and/or drug use practices. Also, HIV-infected women can pass the virus to their newborns during pregnancy and childbirth. Lastly, some people who received blood products before March 1985 got infected blood. Now all donated blood is being screened for HIV.

In the instances where people were infected with the bird flu, they caught the virus through close contact with infected chickens. For example, you would need for the infected chicken to sneeze or cough directly in your face, before the virus can be transmitted to you.

If treatment is recommended, consider your options and work with your doctor/clinician and local support system to prepare a treatment plan.

Most people experience NO symptoms at all from their initial infection. Some people may come down with very common flu-like symptoms, but they are virtually indistinguishable from a regular flu. It takes an average of 5 to 10 years after infection for most people to develop symptoms. People with HIV who use drugs and/or alcohol or are otherwise unhealthy (poor nutrition, stress, lack of sleep) may accelerate the disease process.

by injecting drugs using a needle or syringe which has already been used by someone who is infected. HIV can be passed on in both ways because the virus is present in the sexual fluids and blood of infected people. If infected blood or sexual fluid gets into your blood, then you will become infected. Some people have been infected through a transfusion of infected blood. But in most countries all the blood used for transfusions is now tested for HIV.

Most cases of H5N1 avian influenza infection in humans have resulted from direct or close contact with infected poultry (e.g., domesticated chicken, ducks, and turkeys) or surfaces possibly contaminated from feces of infected birds. For a pandemic of influenza to occur, avian influenza must mutate/change to be able to be passed easily from person to person.

The principle route of human infection with West Nile virus is through the bite of an infected mosquito. Mosquitoes become infected when they feed on infected birds, which may circulate the virus in their blood for a few days. The virus eventually finds its way into the mosquito's salivary glands. During subsequent blood meals, the virus may be injected into humans and animals, where it can multiply and possibly cause illness.

Infected birds shed large numbers of virus in their saliva, nasal secretions and feces. Human illness has resulted from direct contact with birds and their feces or with environments contaminated with infected bird feces. In areas that have had human illness with the H5N1 virus it is fairly common to have chickens roaming free and potentially contaminating the environment. Children who play in a contaminated environment have been at risk of infection.

estimated 33% of the 40 million people living with HIV/AIDS worldwide are co-infected with TB. Furthermore, without proper treatment, approximately 90% of people living with HIV/AIDS die within months of contracting TB. The majority of people who are co-infected with both diseases live in sub-Saharan Africa.

People who are ill with pulmonary TB (i.e. TB of the lungs, the site most commonly affected) are often infectious and can spread the disease by coughing, or sneezing, or simply talking, as this propels TB bacteria into the air. A person needs only to breathe in a small number of these germs to become infected (although only a small proportion of people will become infected with TB disease).

People become infected by the bite of a mosquito infected with WNV. Mosquitoes get WNV from birds. Most mosquito bites will not transmit the disease, but it only takes the bite of one mosquito carrying the WNV to potentially cause an infection. There is an incubation time of 5-15 days between the time a person is bitten and the onset of illness.

Globally the number of people living with the virus reached 38.6 million in 2005. An estimated 4.1 million people acquired the HIV in 2004 ? 200 000 were children, of whom more than 90% were infected through mother-to-child transmission (MTCT). Almost 90% of these new child infections occurred in sub-Saharan Africa. According to UNAIDS, 2.8 million people died of AIDS in 2005. Sub-Saharan Africa is home to about 64% of all people living with HIV and accounts for almost 71% of deaths globally.

Casual contact(sitting next to someone who is infected, sharing eating utensils, using the same restrooms, drinking fountains, etc)