Mar 23, 2020 · What is a virus?Before talking about how viruses work, let’s take a look at what a virus is, exactly. A virus is a kind of infectious particle, made of genetic code in a protective …

Feb 16, 2011 · How Does a Virus Work? You might not think that simple viruses could take over your complex cells, but they do all the time. This is very important to viruses since they don’t …

Jul 8, 2014 · The symptoms alone can’t tell you if the culprit is a virus or bacterium. Viruses that cause the common cold produce these symptoms. So do Streptococcus bacteria, the cause of …

Oct 17, 2018 · When a virus infects our cells, it can do a lot of damage. But, in some cases, certain viruses get into a cell and go dormant, kind of like they are taking a nap. If we are …

Aug 4, 2011 · Memory Cells If your body fights a virus once, the same virus will probably try to attack again. After all the work it took to get rid of that first infection, it would be a shame to …

Feb 16, 2011 · To do this they need to tell the difference between the infected cells and healthy cells with the help of special molecules called antigens. Killer T-cells are able to find the cells …

Nov 12, 2020 · Every year, vaccines protect millions of people from getting sick. But how, exactly, do vaccines work? Learn the science behind how vaccines protect us from disease. Also in: …

Feb 14, 2011 · Still too small to see with your eyes, but big enough to do the important job of cleaning up unwanted viruses, bacteria, and parts of dead cells. Macrophages don’t eat cells …

Feb 16, 2011 · Unlike T-cells and macrophages, B-cells don’t kill viruses themselves. In the Viral Attack story, the B-cell sweeps up the leftover viruses after the T-cell attack. Actually, B-cells …

Jul 18, 2017 · If we have a broader range of antibiotics that work in different ways, we can reduce our reliance on a few specific antibiotics. This would give us more medical weapons to fight …