Given a passage and a query based on the passage, generate an unambiguous, concise and simple answer to the query from information in the passage. Note that the answer may not be present in exact form.

[Q]: Cold symptoms can differ from person to person, but they generally appear about one to three days after exposure to a cold-causing virus. In most cases, cold symptoms will peak around day four and taper off around day seven. The signs that you have a cold usually develop slowly. How long does it take for Chlamydia symptoms to show in men? Why do bruises sometimes take so long to show? How long does the cold virus incubate before showing symptoms? When can an elderly person go out with this bad flu season? How long does it take for a lung cancer to cause symptoms? How long should I wait to drink alcohol after taking medicines? How long does it take to heal after a fever? Flu symptoms usually start within one to four days after infection. Unlike a common cold, the effects of an influenza virus infection can come on very suddenly. The first signs of the flu are often a fever or chills, accompanied by headache, sore throat, dry cough, runny nose, muscle aches, and fatigue. Even in healthy people who don't develop flu complications, the flu itself can cause symptoms that may persist for weeks, including: 1 Fatigue. 2 Weakness. 3 Low appetite. 4 Dry cough. 5 Airway irritation that affects how long you can be active. 6 Loss of sense of smell, which in rare cases becomes permanent. An adult infected with influenza may be contagious from one day before symptoms start to 5 to 7 days after becoming sick. Children may continue to be contagious for longer than 7 days. Staying home until your contagious period has likely passed will help you avoid passing the flu on to other people. A person with the flu may experience fever, chills, sore throat, dry cough, headache, fatigue, muscle aches. The symptoms can last two to seven days. Children can sometimes suffer from nausea and vomiting, but these symptoms are uncommon in adults. Most healthy adults may be able to infect other people beginning 1 day before symptoms develop and up to 5 to 7 days after becoming sick. Children may pass the virus for longer than 7 days. Symptoms start 1 to 4 days after the virus enters the body. That means that you may be able to pass on the flu to someone else before you know you are sick, as well as while you are sick. Some people can be infected with the flu virus but have no symptoms. During this time, those persons may still spread the virus to others. A bout of the flu typically lasts one to two weeks, with severe symptoms subsiding in two to three days. However, weakness, fatigue, dry cough, and a reduced ability to exercise can linger for three to seven days. How Long Is the Flu Contagious? As the illness progresses, a person may have warm, flushed skin, watery or bloodshot eyes, a severe cough that brings up phlegm, nasal congestion, and nausea and vomiting. A bout of flu typically lasts one to two weeks, with severe symptoms subsiding in two to three days. However, weakness, fatigue, dry cough, and a reduced ability to exercise can linger for three to seven days. How Long Is the Flu Contagious? A 2013 survey conducted by the National Foundation for Infectious Diseases revealed that 41 percent of people think the flu is only contagious after symptoms start. That's not true. Answer Wiki. For influenza in particular, as Quora User says, a typical incubation period would be 1-4 days. That's a reasonable range for many other viruses, too, especially respiratory viruses. Gastrointestinal viruses probably average a little shorter incubation time. Query: how long does flu take to show symptoms
[A]: Flu symptoms usually start within one to four days after infection.

[Q]: The Longitudinal Study of Australian Children found that 12-13 years olds were spending up to 30 per cent of their waking day using screens, considerably more than the healthy guidelines. 1 media_cameraNicholas, 13, and Daniel, 9, spend up to five hours a day playing computer games, their mother says. The amount of time children spend glued to a screen has risen dramatically in the last 20 years, a new report suggests. Children aged five to 16 spend an average of six and a half hours a day in front of a screen compared with around three hours in 1995, according to market research firm Childwise. Teenaged boys spend the longest, with an average of eight hours. Eight-year-old girls spend the least - three-and-a-half hours, according to the study. WEDNESDAY, March 12 (HealthDay News) -- A new survey reports that teenagers spend far too many hours a week in front of TVs and computers, and those in poor neighborhoods have even more screen time.. Girls who lived in the poorest neighborhoods were five times more likely to spend the most time in front of screens than those in the richest neighborhoods. The girls in poor neighborhoods might be more vulnerable to perceptions that their neighborhoods are not safe, Barnett suggested. Half of the boys and a quarter of the girls reported spending an average of more than 42 hours a week in front of electronic screens. TV was the most common form of screen use, accounting for 85 percent of the time. It finds that teenaged girls now spend an average of seven-and-a-half- hours watching screens, compared with 3.5 hours of TV viewing in 1995. Younger children fare slightly better - in 1995, five to 10-year-olds averaged around two-and-a-half-hours of TV. Fast-forward to 2014 and screen time has risen to four-and-a-half hours. More on this story. 1 Sony's Morpheus virtual reality helmet set for 2016 launch. 2 How we are becoming nation of digital makers. 3 Many 'children taking risks online'. 4 Computer time is modern parents' bribe and threat. The Longitudinal Study of Australian Children found that 12-13 years olds were spending up to 30 per cent of their waking day using screens, considerably more than the healthy guidelines. media_cameraNicholas, 13, and Daniel, 9, spend up to five hours a day playing computer games, their mother says. If you or anyone you know needs help: 1 Lifeline on 13 11 14. 2 Kids Helpline on 1800 551 800. 3 MensLine Australia on 1300 789 978. 4 Suicide Call Back Service on 1300 659 467. 5 Beyond Blue on 1300 22 46 36. 6 Headspace on 1800 650 890. Most Australian children spend too much time glued to screens, research reveals. THE majority of Australian children are spending too much time glued to screens research by the Australian Institute of Family Studies has revealed. The decade long study tracked 4000 preschoolers through to their early teen years and found 64 per cent of the group exceeded the daily limit of screen time recommended by the Australian Government. Query: how long do australians spend in front of screens
[A]: The Longitudinal Study of Australian Children found that 12-13 years olds were spending up to 30 per cent of their waking day using screens.

[Q]: Using this tape is one among many steps which are designed to ensure safety when it comes to handling sterile materials. If a package of materials does not have autoclave tape, it is assumed to be non-sterile, which means that it needs to be processed in the autoclave before it can be used. When materials are packaged for the autoclave, the tape is added last, and most people include a notation of the date on the tape. The tape is designed to adhere in spite of the high heat and steam in the autoclave. With the use of autoclave tape, people can determine whether or not packages of material have passed through the autoclave, and they can also see how recently supplies were sterilized, by referring to the date noted on the tape. Autoclave tape is a specialized tape product which is used on packages of materials placed in an autoclave. The tape has chemical strips sensitive to high heat and pressure which change color when they are exposed to sufficiently high heat and pressure, indicating that a package of materials has been in an autoclave. The following are basic instructions for autoclave use but do not replace the manufacturer's operating instructions and hands-on training. Before using any autoclave for the first time, read and thoroughly understand the owner's manual because many makes and models have unique characteristics. Place the items to be autoclaved in the chamber. Check the drain screen to make sure that it is not plugged or obstructed. For bench top units that do not have inline steam, check and fill the reservoir with deionized water to the fill line (see manufacturer's instructions). Close and seal the autoclave door. On the autoclave keypad, or dials, select: The following are basic instructions for autoclave use but do not replace the manufacturer's operating instructions and hands-on training. Before using any autoclave for the first time, read and thoroughly understand the owner's manual because many makes and models have unique characteristics. 1 Place the items to be autoclaved in the chamber. 2 Check the drain screen to make sure that it is not plugged or obstructed. Steam/Autoclave. Steam sterilization is the oldest and most common process used in medical and related applications. Its proven effectiveness is further enhanced by being both reliable and economical. In this process, the item to be sterilized is placed in a chamber, e.g. an Autoclave. The item is exposed to a combination of heat and saturated steam (water vapor) for an established period of time. This process kills the micro-organisms present, sterilizing the item. Generating Steam and Steam Quality. Steam is the autoclave's sterilization agent. In our Sterilization Methods series, we explained the physics of steam and why it's ideal for destroying microorganisms such as bacteria and spores. Part 1 of this post will explain how steam is generated for autoclaving purposes. Autoclave tape. Autoclave tape is an adhesive tape used in autoclaving (heating under high pressure with steam to sterilise) to indicate whether a specific temperature has been reached. Autoclave tape works by changing color after exposure to temperatures commonly used in sterilization processes, typically 121C in a steam autoclave. Small strips of the tape are applied to the items before they are placed into the autoclave. The tape is similar to masking tape but slightly more adhesive, to allow it to adhere under the hot, moist conditions of the autoclave. One such tape has diagonal markings containing an ink which changes colour (usually beige to black) upon heating. It is important to note that the presence of autoclave tape that has changed color on an item does not ensure that the product is sterile, as the tape ... SEE the new blog series about Autoclave Sterilization Basics which discusses topics about autoclave sterilizers and sterilization. 1 Steam generators and steam supply. 2 The pre and post vacuum phase of the sterilization cycle. 3 The autoclave jacket. 4 The cooling process. 5 The autoclave control systems. Allow items to cool in the autoclave for at least 10 minutes before fully opening the door. Check the autoclave tape for a color change, and the print-out from the recorder to see if the time and temperature were attained. If not, the load should be re-autoclaved in another autoclave. Any bag displaying the biohazard symbol must be over bagged with an opaque trash bag and sealed prior to disposal in the regular waste stream. Steam/Autoclave Steam sterilization is the oldest and most common process used in medical and related applications. Its proven effectiveness is further enhanced by being both reliable and economical. Query: how does autoclave tape work
[A]:
Autoclave tape has chemical strips sensitive to high heat and pressure which change color when they are exposed to sufficiently high heat and pressure, indicating that a package of materials has been in an autoclave.