The incubation period for SARS is believed to be short, around three to six days. The speed of international travel does, however, create a risk that cases can rapidly spread around the world. See similar questions...

The primary way that SARS appears to spread is by close person-to-person contact. SARS-CoV is thought to be transmitted most readily by respiratory droplets (droplet spread) produced when an infected person coughs or sneezes. Droplet spread can happen when droplets from the cough or sneeze of an infected person are propelled a short distance (generally up to 3 feet) through the air and deposited on the mucous membranes of the mouth, nose, or eyes of persons who are nearby. See similar questions...

It is difficult this early in the investigation to say exactly how SARS spreads. Close contacts of cases, including health care workers and family members, have developed similar illnesses. Examples of close contact include having cared for, lived with, or had direct contact with respiratory secretions and body fluids of people with SARS. See similar questions...

To the best of your humble FAQ author's knowledge, the current speed record for a 'hobby' radio controlled helicopter is just over 100 miles per hour. To get that fast requires extensive modification, so you end up with a helicopter that can go fast but doesn't really run well, emits an ear-splitting roar, doesn't fly well upside-down, and basically can't really do much besides go really fast. The average person's "sport" helicopter is still pretty quick though. See similar questions...

The reasons for such a rapid spread of the epidemic across the country are migration of labour, low literacy level leading to a low level of awareness among potential high risk groups, gender disparities, sexually transmitted infections, reproductive tract infections and social stigma. See similar questions...

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. 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. See similar questions...

the prostate grows, it grows through the prostate, the prostate capsule and the fat that surround the prostate. It can also grow into the base of the bladder and into the seminal vesicles which are located adjacent to the prostate. The spread of cancer is known as metastasis. When cancer spreads outside of the capsule it usually goes to either the lymph nodes or the bones. See similar questions...