Is there really a World Virus Day, is there a good virus in the world?

April 26th.

Don't forget to beware of new viruses in a broadband environment.

Hot virus of the week: CIH virus.

On July 26, 1998, the CIH virus began to spread widely in the United States; On August 26, 1998, the virus invaded China; On August 31, 1998, the Ministry of Public Security issued an urgent notice, which was broadcast in full by Xinhua News Agency and ** Taiwan News Network; On April 26, 1999, the CIH outbreak caused more than 60 million computers around the world to be destroyed to varying degrees. On April 26, 2000, CIH broke out again, with global losses of more than $1 billion; On April 26, 2001, more than 6,000 computers in Beijing alone were damaged by CIH, and the number of hard disks repaired by Rising was close to 400 that day. On April 26, 2002, the CIH virus broke out again, thousands of computers were destroyed, and the number of hard disks repaired by Rising approached 200 that day. On April 26, 2003, more than 100 victims of the CIH virus still came to Rising for help, and Rising engineers helped them recover valuable data.

Be vigilant against the spread of new viruses on broadband networks.

Due to the attention and vigilance of the whole society to this virus, it is believed that the epidemic of CIH virus this year will not be too serious. With the popularization of broadband Internet among ordinary users, new viruses such as mail viruses and worms are very likely to cause greater harm during the first week under the broadband network characterized by rapid spread.

Viruses with commercial purposes may open a backdoor to the user's computer, set the computer homepage as pornographic**, use the user's computer to send spam, etc., these viruses are not as harmful as CIH on the surface, but the impact on the social atmosphere and people's normal life can not be underestimated.

There is an annual April 26th, the virus name cih has been flare-up since 1999 for details see my post bar introduction.

April 26 is World Virus Day.

You can use the Internet.

Of course, there could be no humanity without it. Many biologists believe that there is at least one specific type of virus that is not a bad guy – a bacteriophage, a virus that can infect bacteria. When the DNA of these viruses is captured by a cell, that cell may be controlled.

Whether on land or in the ocean, bacteriophages keep bacterial populations under control. They kill up to 40% of bacteria in the ocean every day, helping to control bacterial reproduction and redistribution of organic matter.

Their ability to selectively kill bacteria also excites medical scientists. Natural and engineered bacteriophages have been successfully used for bacterial infections that do not respond to antibiotics. This process is called bacteriophage** and can help fight antibiotic resistance.

Recent research points to another important function of bacteriophages: they may be nature's ultimate gene tinkerers, making new genes that allow cells to reassemble for new functions.

Introduction

Bacteriophages are bacteria and fungi that infect them.

A general term for viruses of microorganisms such as algae, actinomycetes or spirochetes, which are called bacteriophages because some of them can cause lysis of host bacteria. At the beginning of the century in staphylococci.

and Shigella were first discovered. As a type of virus, bacteriophages have some of the characteristics of viruses: tiny individuals; Does not have an intact cellular structure.

Contains only a single nucleic acid segment balance. It can be thought of as a creature that "preys" on bacteria. Bacteriophage genome.

Contains many genes, but all known phages are ribosomes that utilize bacteria in bacterial cells.

Various factors and amino acids required for protein synthesis.

and energy generating systems to achieve their own growth and proliferation. Once out of the host cell, the phage can neither grow nor replicate.

Bacteriophage is a type of virus, and its special feature is that it specializes in bacteria as the host, and the more well-known bacteriophage is the T2 bacteriophage with Escherichia coli as the host.

Like other viruses, a phage is just a mass of genetic material wrapped in a protein shell, and most phages have "tails" that are used to inject genetic material into the host.

A bacteriophage is a ubiquitous barrage organism and is often accompanied by bacteria. Bacteriophages can usually be found in places full of bacterial communities, such as soil and animal offal. The richest place in the world to have bacteriophages is seawater.

1. Methicillin-resistant Staphylococcus aureus (MRSA), MRSA is not a new bacterium, it is present in all countries in the world, and there are many in China, and it is on the rise. MRSA infection can be manifested as fever, poor spirit, local infection symptoms, and the most common is pulmonary infection, others such as **, urinary tract, maternal reproductive tract infection, and severe sepsis.

2. Ebola virus is a virulent infectious disease virus that can cause Ebola hemorrhagic fever in humans and other primates, and the Ebola hemorrhagic fever (EBHF) caused by it is the deadliest Oba virus hemorrhagic fever in the world today, and the symptoms of infected people are very similar to Marburg virus, which is also in the firoviridae family, including nausea, vomiting, diarrhea, skin color changes, body aches, internal bleeding, external bleeding, fever, etc.

3. Smallpox virus is also an infectious disease that has been eradicated by humans worldwide. The average incubation period after smallpox virus infection is about 12 days (7-17 days). Initial symptoms after infection include:

High fever, fatigue, headache, rapid heartbeat, and back pain. After 2-3 days, there will be a typical smallpox rash that is clearly distributed on the face, arms, and legs. In the early stages of the rash, there will also be reddish lumps that accompany the rash.

If only the world were free of viruses? If there were no viruses, the world would be truly gone!

Not possible because viruses mutate.

The world's viruses generally include biological viruses and computer viruses.

1. Biological virus: A biological virus is a non-cellular organism that is tiny, simple in structure, containing only one nucleic acid (DNA or RNA), and must parasitize in living cells and proliferate in a replication manner. A virus is a non-cellular life form, it is composed of a long nucleic acid chain and a protein coat, and the virus has no metabolic mechanism of its own, no enzyme system.

As a result, when the virus leaves the host cell, it becomes a chemical substance that has no life activity and cannot reproduce on its own. Its ability to replicate, transcribe, and translate is carried out in the host cell, and when it enters the host cell, it can use the material and energy in the cell to complete life activities, and produce a new generation of viruses like it according to the genetic information contained in its own nucleic acids.

2. Computer virus: Computer virus is a set of computer instructions or programs inserted by the compiler into a computer program that destroys computer functions or data, can affect the use of the computer, and can replicate itself. Computer viruses are transmissible, hidden, infectious, latent, excitable, expressive, or destructive.

The life cycle of a computer virus: development stage, infectious period, incubation period, attack period, discovery period, digestion period, extinction stage.