Trojan software programs are just one of the threats that affect Internet security, and any malicious software program can cause a wide variety of problems and weaknesses in your PC. Anti virus software programs are critical, because of the large number of Internet security threats out there on the world wide web. Some of the more serious programs can hijack your computer, access everything that is on your system, or even cause physical damage and system failures that will not allow your system to start up ever again. A new PC can be quite costly, so it is essential that you protect your system against Trojans and other Internet security threats.

The best way to avoid any malicious programs, including Trojans and viruses, is to be very careful about clicking anything. Many Trojans do not use force to enter your computer, instead they trick you into believing that the program or prompt is legitimate. Once you click the agreement or okay button, the Trojan will download, and may have the ability to download or activate other harmful programs as well. Always read the entire agreement, warning, or prompt, and think carefully before you agree. If you are not sure what a program is or does, do not allow it to run or install. This will protect you against Trojans and viruses that may cause irreparable harm to your system and your data.

Anti virus programs that are legitimate can help identify these harmful programs, many times before the Trojan can even get on your PC. It is important that these programs are updated daily, to prevent against any new threats recently identified. You also need to scan your system at least once a day for the best Internet security and computer protection. It may be necessary to scan more often if the program detects problems. Anti virus software can prevent Trojans and viruses, and increases your level of Internet security.

Use care when surfing on the web to prevent Trojans and other malware programs from gaining access to your PC. Some websites may be infected, either intentionally or without the site being aware of a third party infection, and if you visit one of these sites you may get a prompt that is misleading, or spyware may be downloaded secretly in the background, so you do not even realize it. Use caution and common sense when surfing the web. Only visit sites that you know are legitimate and infection free. This will minimize the risks of a Trojan or virus infecting your system.

To prevent viruses, Trojans, and other malicious software from causing problems on your computer, you should have Internet security programs and processes that are layered. Start by being careful to read everything before allowing a program to install or run. Make sure you have a quality anti virus program installed and updated, and that this program runs a daily scan to detect these infections. Be careful which sites you visit, because some sites can have harmful components. These steps will help you protect your system and Internet security.

Remy Na

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A virus is a microorganism that is not visible to the naked eye. It is highly contagious and communicable. A virus attacks and clips to a living cell of the human body. It then discharges its DNA or RNA, which smashes the original genetic material and functioning of the cell. But before the victimized cell expires, it leaves or releases more of that virus. The virus multiplied in such a fashion impedes the growth and working of other healthy cells too, so much so that sooner or later the entire body comes in its grips. However, the immune system of the body endeavors its best to brawl the viral attack. But it does not succeed in all the cases. Due to this reason, the doctors and dieticians prescribe a healthy diet rich in nutrition that strengthens the resistance of the body.

The Residence and Transmission of Virus- there are different types of viruses known. Some infect humans, others animals and a few affect both. Viruses are everywhere in our surroundings. They can be transmitted via the food we eat, air we breathe, water we drink, sexual contact etc.

Some common Viral Infections- there are some well known viruses and the diseases caused by them.

· HIV virus is one that destroys the cells in the immune system of our body. It is therefore named as HIV i.e. Human Immunodeficiency Virus. HIV takes the form of AIDS at an advanced later stage. HIV virus reaches the human body through several ways such as- via sex with a partner who is already living with HIV, though infected mother’s milk to her child, through human saliva, HIV contaminated needles, syringes and so forth.

Thus, one should be very cautious regarding all these factors. Completely safety should be observed to avert lifelong HIV infection especially because no adequate cure is yet available to eliminate the effect of HIV.

· Hepatitis is even caused by virus. Since different kinds of viruses are at work, there are different types of hepatitis. These viruses harm the human liver, which results in its burning or Inflammation.
TRUTH About SWINE FLU 1976 part 1 of 2

Hepatitis A and E spread via the food and water of the infected person and through anal sex. There exists a vaccine for hepatitis A but not for E. Hepatitis B is caused by unprotected sex, childbirth and contact with infected person. Vaccination is available for hepatitis B and it is better nowadays to get vaccinated against it. This sterilization also ceases the threat to be caught by hepatitis D in future. Hepatitis C virus is transferred by the way of contaminated blood and is cured through medicines.

A possible prevention to hepatitis is to maintain hygiene and vigilance in matters of sex and contacts with other persons.

· West Nile Virus is known for causing diseases in animals, birds as well as humans. In humans the WNV reaches through the bite of an infected mosquito. Once the virus enters an individual’s blood, it can get transferred to all those who come in contact with it though blood transfusions, organ transplants, breastfeed and so forth.

In order to prevent oneself from the WNV, check the population of mosquitoes in your area and near your house. Don’t allow water logging, open bins, unhygienic sanitation, open pits etc. in your vicinity.Medication through drugs and no vaccination per se is present for WNV.

· Mostly the Asian and African continents encounter the threat of Polio Virus. This virus can result in a minor to complete paralysis. The poliovirus can infect person of any age. Due to the lack of hygiene this virus comes in the air through human feces and gets circulated. It enters the human body through his mouth and makes its way to the intestines. This virus particularly damages the legs of the person. The paralysis in legs due to poliovirus cannot be cured. It also destroys the respiratory system by making the breathing muscles immobile.

Most often polio hits the infants. Polio drops and vaccines are available everywhere. People should take them and give these to their kids too.

Mansi Gupta

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The concerns of Internet Security have grown today like never before. Despite the continuous attempts of Internet community, the threats are increasing and getting more and more vicious by each passing day.

There are many Internet Security tools available in the market. Some of them are outstanding. But still, none of them is perfect. It can’t be. The best protection is in your own hands. Follow a disciplined approach while using Internet services.

1. Be careful about using MS Outlook. Outlook is more susceptible to worms than other e-mail programs, unless you have efficient Anti-Virus programs running. Use Pegasus or Thunderbird (by Mozilla), or a web-based program such as Hotmail or Yahoo.

2. Take special precaution while dealing with email attachments. Be cautious about attachments with a double extension, such as .txt.vb or .jpg.exe, as the system will only recognize the extension to the extreme right, and run the file as such. Double extensions are often a good indicator that the file is malicious.

3. Do not use disks that other people gave you, even from work. The disk could be infected with a virus. Of course, you can run a virus scan on it first to check it out, but AV programs are not 100% effective.

4. Do not download software from just any website. If it is a reputable site that you trust, you are probably safe. The threat is not only from software; even other file types like .txt, .doc, .xml can have infections.

5. Be careful when surfing. You might get a malicious script from a webpage without even getting a warning. Tweak your Browser settings for maximum safety.

6. Try to balance paranoia with common sense. Some people get really weird about viruses, spyware, etc. It’s just a computer! Back up your data and follow these steps, and it shouldn’t be a big problem.

7. Setup your download manager to scan a download first before you open it. When you click to download a file from Internet, generally browser gives two options. To save it on the Disk or To Open the file with the default program. Always choose the first option, because, it ensures that the download is first scanned with your antivirus, before saving it on the disk.

Silki Garg

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Influenza viruses are classified into the A, B and C types. A type viruses are the most dangerous and they may affect both people and numerous animals simultaneously whereas B and C type viruses typically affect humans only and they are the least severe amongst the three. Of these, A type viruses are further sub-categorized into subtypes such as the H and N strains. Is bird flu virus deadly?

One of most severe of A type influenza viruses is the much feared bird flu virus with the deadly H5N1 strain being the most widely known and notoriously dangerous.

The bird flu virus is very much like other subtypes of influenza viruses. However, the primary difference between the bird flu viruses and other types of influenza viruses is the way it is being transmitted. Other strains of influenza viruses that are common among humans are passed from one person to another through microscopic droplets of saliva or mucus in the atmosphere, via direct contact either with the infected person or through sneezing and coughing.

On the other hand, the H5N1 strain is not transmitted through human contact. Instead, improper handling or ingestion of infected poultry, through either regular direct contact with potentially dangerous poultry or their feces will increase the possibility of contracting the disease. Another common way is to consume infected animals that are not cooked fully or thoroughly.

The deadly H5N1 strain of bird flu virus was first identified in humans in 1997. Prior to this incident that happened in Hong Kong, there were no known cases of it infecting humans. Then, several major outbreaks occurred in 2004 and the following years whereby at least one hundred and fifty people died in neighboring Asian countries such as Cambodia, mainland China, Indonesia, Thailand and Vietnam and Thailand. The virus subsequently surfaced in other parts of Asia and Europe, including some Middle East countries.

It is also believed that this particular virus was not always a threat to humans. Since the identification of the virus first in the early nineteenth century, it has mutated with our influenza viruses and transformed into different forms. It is the ongoing vitality of such mutation that causes fear and concern surrounding the H5N1 strain. This is because the virus has been persistently manipulating itself to survive in varying environments and relentlessly bypassing treatment techniques.

The great devastation of the H5N1 strain can be rapidly identified when a person becomes infected with the deadly bird flu virus. The strain will cause an exaggerated response to his cytokines, which are small proteins produced throughout the body in response to an immune stimulus that regulate the entire immune system. This increase creates an imbalance and instability to the system and gives a negative effect to the body as it indirectly lowers its resistance to the virus. In addition, it slows down other aspects of the immune system thus giving the virus the liberty to create rampancy within the body.

In many other sicknesses, antibiotics are administered to suppress the immune system and fight the infection. However, antibiotics are ineffective in treating a person infected with the H5N1 strain, as the virus is not bacterial in nature.

Although measures had been taken to challenge the virus and lessen the impact it had on people as well as to refrain the virus from becoming severe, a vaccine has yet to be developed for the long anticipated mutated forms of bird flu viruses that may cause a potential global pandemic. Besides not having significant time for researches, a vaccine that is created now will not be of use when mutation occurs, as the nature of the future virus is not known.

As such, the most effective way to avoid contacting the bird flu virus is prevention. Proper and good hygiene habits reduce the risk of the spread of the deadly bird flu virus. These include simple practices such as washing your hands thoroughly before preparing food and taking meals, utilizing hand sanitizer as well as avoiding unnecessary direct contact with sick people, especially those with flu-like symptoms. Until a new vaccine has been discovered, this may be the best way to lower our risk of becoming the next victims.

Ske Chay

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It was first discovered in Italy in 1878 and was even called fowl plague because of the enormity of its effect in chicken livestock. It was however only in 1955 when avian flu was confirmed to be caused by influenza A viruses. Wild fowl is the natural carrier of the virus, though it is not affected by the virus and is only a transmitter to birds, pigs, horses, etc. The bodies (intestines to be more specific) of gulls, waterfowls and shorebirds are said to be “natural reservoirs” of the disease. Their bodies have long adapted to the problem and have developed internal antibodies to combat the virus. The adaptation, however, does not extend to other species. Hence domestic birds are the most affected and other animals and humans are only marginally affected, in numbers. The bird flu virus causes two forms of influenzas, namely, a low pathogenic form which shows only nominal symptoms and a high pathogenic form which affects internal organs and might prove 100% fatal in 48 hours.

The disease is contagious and spreads through air and in manure. The transmission occurs from air, contaminated water, equipments especially those used in animal farms, clothing, etc. At high temperatures the virus gets destroyed, like in prolonged summers, cooking, steaming, fires, etc. but survives for long periods in cold weather. The bird flu virus starts showing its effects in 3 to 5 days, and can be fatal if highly pathogenic. Hundreds and millions of birds get killed every year, since the most commonly practiced way of eliminating the virus is to slaughter the infected animals.

It has a long history of affecting human population in epidemic form. Those subtypes which infect humans are called human influenza virus. The only known ones are H1N1, H1N2 and H3N2, with H5N1 having a potential threat. The symptoms shown in humans are same as those from other influenza, namely, fever, cough, muscle fatigue, conjunctivitis and sometimes breathing problems and fatal pneumonia. Detection of the avian bird flu virus in the human body can be done using general influenza virus tests, but this might be unreliable. The most reliable test till date is microneutralization but is a complicated test and can be performed only in highly professional laboratories. Normal antiviral drugs work against the human influenza virus but other specific drugs for specific new viruses are being developed.

As far as humans are concerned, the bird flu virus has substantial risk of an influenza epidemic in near future. A primary concern is the rapid spreading of the virus

Clive Jenkins