Virus Definition and 147 Threads

What happens when virus invades a host cell, reproduces and then leaves without destroying the host cell. Then does the immune system destroy these infected host cells? How do viruses do damage. Is it simply by leaving the host cell and destroying it?If bacteria can enter the cell without...

How long does it take for a pandemic virus to "die out"? How long does it usually take for a pandemic virus such as the swine flu to "die out"?

i have virus in my computer just can't delete it i use all antivirus free version pust all programe tell no virus dected it activate after i format c:\ part when i just open my computer without open or instal any program i try put my file in part d:\ to RAR archiver and format it work put...

I have been wondering about life. Not the origins of life or the philosophical implications of life. just what is life. what's the difference between dead and alive. I know no one has the answer, but it would seem to me that a place to start would be to study the simplest form of life we...

Do you know how long I will have the virus spread all over the body's blood veins after I have an infection ?

I ran spy bot and it said i had this virus. I tried to fix it but it said it was un able to and that i needed restart my computer. i did that and it still is there. I am getting a lot of pop ups to. please help! thanks!

What roll does the mosaic virus play in GMOD food?

I heard the virus' natural host is a flea commonly found on cave-dwelling bats, especially the vampire bat. Is this an actual virus, is there any info about it?

http://www.reuters.com/article/healthNews/idUSN1530262620071115?feedType=RSS&feedName=healthNews&rpc=22&sp=true

Not sure where this post belongs, but anyway i was wondering if a virus such as the one depicted in 28 days later could ever be developed or evolve from some virus that we know of today. From what i know i think viruses are capable of evolving because when i read the hot zone it talked about a...

Hi, My PC runs on Windows XP Professional SP2. Today when I turned on my PC, I found that my desktop appearance had changed, more specifically the start taskbar was the white Windows classic version, not the usual blue XP version. But I didn't take it much seriously, thinking somebody else...

I once worked with a brilliant chemist who cured everyone in his very extended group of friends suffering from Herpes Simplex-1. His method was successful 100% of the time but did sometimes require several treatments (rarely)! Really amazing! He used a unique method of photodynamic therapy...

The energy that binds an orbiting electron to the hydrogen nucleus is 13.4 eV. Calculate the ratio of the binding energy per nucleon to the binding energy per electron in deuterium. Which part is held more tightly, the electron or the neutron? I already worked out the average binding energy...

Is it possible to have a cold virus in your back or affect your back. I recently had a very bad cold and now my lower back is killing me. My mom says you can have a cold in your back. Is this an old wives tale?

Ok, i have no idea where this came from but it's here. And I've deleted it a hundred times, and moved it to the chest from my antivirus (avast!) , still it keeps showing up again and again. it's in the windows folder, an the file's name is MDM.exe the antrivirus keeps on detecting it and...

Ok all you computer smart people. I just got a virus and was wondering if it is possible to get rid of it. I have no idea what it is called but what happened was my friend messaged me on msn and said "I hope this isn't you and then a link" because i thought it was just my friend trying to talk...

Homework Statement A typical virus is a packet of protein and DNA (or RNA) and can be spherical in shape. The influenza A virus is a spherical virus that has a diameter of 85 nm. If the volume of saliva coughed onto you by your "friend" with the flu is 0.010 cm3 and 1/109 of that volume...

Oh darnit, I got a virus on my calculator from downloading a program onto it I assume. Should have sticked to writing my own! It is incapacitated. I need to wipe the disk from my computer, but how can I do this?

My Bio textbook says that, by introducing the virus coat protein gene into a plant cell the cell becomes virus resistant. How is that possible?

My question is about West Nile Virus and why/how it is much more likely to cause encephalitis in the elderly. What I've found is that increased permeability of the BBB is what allows the virus to infect brain tissue which is how the majority of neurological damage is done. The rest of the...

I'm trying to open a doc that I have already scanned with Norton AV. Upon opening, Word is "requesting virus scan". Well, it's been doing that for a few minutes now... What gives? I don't care if it scans it ten times but it seems to be stuck. I don't think its request has been met by NAV.

Question? Can Science make Antibodies smaller? This way Antibodies can fit between the Major Capsid Protein of a virus with ease. Wouldn't it be easier for the Antibody to invade the virus if the Antibody were normal but much smaller than the Average Antibody so it could get past the...

Nature has this report about a computer program at the University of Illionois that successfully simulates the million or so molecules in a virus interacting with its environment, a drop of salt water. http://www.nature.com/news/2006/060313/full/060313-4.html "This is only the first step".

Ok here it is... A few nights ago i posted a thread about a some adware of somthing like that but dduardo helped me with it, which i was extremely gratful for. But i now have a new problem which i believe stemed from the old problem. I have som e sort of virus on my computer and i don't know...

Hi. I have 3 computer questions. Hopefully someone will know some or all of them. Auto Reboot From time to time, I wake up in the morning to a freshly-rebooted computer. A message tells me that Windows was updated and it required a reboot. Why can't it just ask me to reboot my own...

I can help if anyone has problems with computer viruses. I once worked at a Microsoft Call center for this sort of thing.

See http://www.msnbc.msn.com/id/7279844/did/9598565/. The virus that caused the deadly "Spanish" flu epidemic of 1918-1919 has been reconstructed using a sample of its DNA. The object is to study how flu viruses mutate and attack.

I have a computer with windows ME which was working fine then suddenly the appearance changed on the screen (looks like it's in safe mode but isn't) the norton antivirus program disappeared and it knocks the phone line out when it connects. some other programs have also disappeared. :confused:

I heard that virus attacks our body, but when does a virus die ? E.g a HIV, do you know when it deis ? when is a white cell able to eat it ? or none of hiv's are eaten by any white cells ? Thanku :wink:

So some labs got that deadly virus: http://news.bbc.co.uk/2/hi/americas/4440541.stm My question: how do the labs destroy the virus? I mean, if I had that container with the virus, I really didnt know how to treat it. Thanks in advance for your replies. P.S. I accidentally posted in the...

can aids virus survive in cow's blood?

This morning I got a ton of those Messenger Service messages that urge you to go to some site for a patch to prevent them, followed by Norton Antivirus informing me of many, many viruses that it could neither fix nor delete. This happened once before and I solved it at that time by doing a...

My company uses McAfee ASAP (anti-virus) for security against viruses. It runs continuously and monitors all internet traffic. Since Friday, the anti-virus software was activated just after I entered a couple of websites. One seemed to be a 'legitimate' technical site, while the other was...

Does anyone know of where to obtain a good virus software scanning program? I downloaded a virus scanning program awhile back which told me I had one, but I didn't know how to remove it.

1) How long can this virus last between hosts? 2) When you "get better", what is actually happening? has your body overcome the virus's replicating abilities? evicted it? "killed" it? 3) Can the same virus re-infect one right away? like, say you've just had a cold, gotten better, and then you...

I have "observed" a quite strange phenomenon which I don't know if this is virus or not.. When I power on ny computer, there is a light flashing angrily and a irritative noise which I once had some guys checked to see if there is any errors in the sys, but they saw nothing, i don't know if...

Virus r something else ? Im using Win XP Pro. I have downloaded the latest fix from microsoft site. Ran it. Downloaded the latest virus definitions. Installed it. But still my computer crashes unexpectedly. Sometimes it shows Blue screen. Sometimes some kinda err in lasass.exe Sometimes...

So, there are 5 basic Kingdoms in Taxonomy that include Monera, Animalia, Protista, Plant, and Fungi right? So, where does the virus fight in? Monera? Or is it considered non-living?

While searching a topic on Google, I ran across a link that lead to Physicsforums so I clicked the link. The next thing I knew, my computer was under massive attack. Viruses were being delivered as anti-virus warning windows began popping up. Spybots and Malware were being delivered - found...

My dad gets that error on every exe he tries to open. He was infected with a virus, actually several. Is there any way to fix the damage? As far as we can tell, we got rid of all the infected files. If we can't, how would we format the hard drive? It's an XP system.

Earlier tonight Tsunami's laptop started producing a very high pitched squealing sound. She thought it might be her hard drive - it did sound a bit like a bearing failure - but to me it sounded more like audio feedback; it wasn't, but it sounded much like that. Then, about an hour ago I had the...

1) Norton 2) Mcafee 3) Panda 4) Norman 5) Bullguard 6) Pccillin 7) AVG grisoft--------FREE of charge 8) you name it

[?] What is a thought virus? You can call it a meme or an idea that replicates by symbiotically infecting human minds and altering their behavior, causing them to propagate the meme. Our society have always been buzing with these meme around through communication. You might be...

couldn't vampirism be a virus that puts the body in a suspended animation in which it can mutate the body ie giving it advanced senses the blood would regenerate the body the organs except the heart and brain becoming useless explaining why myth says dismemberment and ripping the heart out would...

"More than a thousand unsuspecting Internet users around the world have had their computers hijacked by hackers and turned into virtual hosts for pornographic Web sites." http://www.iht.com/articles/102476.html

Yesterday I was a at special SARS conference and here what I have learn and did not see on the news: - Virtually all infected people show SARS viruse in the fecals matter only 50% show SARS viruses in the resporatory system. Therefore SARS viruse would be transmitted from air to air, fecal to...

From the CDC website: During this 10-day period, all members of the household with a SARS patient should carefully follow recommendations for hand hygiene, such as frequent hand washing or the use of alcohol-based hand rubs. In the lab we always have to clean the surfaces to inactivate any...