Viruses aren't alive; they can only grow and reproduce inside of the host cells they infect. Bacteria are living organisms. Both viruses and bacteria can get you very sick, but most bacteria are harmless and many are helpful.
Many types of infections can cause adenoiditis. It's common to have a respiratory virus before an acute bout of adenoiditis. Viral infections can make infection with bacteria more likely. The most common infectious bacteria in inflamed adenoids include: Haemophilus influenzae Streptococcus pneumoniae S...
Avirusis an ultramicroscopic (20 to 300 nm in diameter), metabolicallyinert, infectious agent that replicates only within the cells of living hosts, mainly bacteria, plants, and animals: composed of anRNAorDNAcore, a protein coat, and, in more complex types, a surrounding envelope. Virus, e...
according to the Science Education Resource Center at Carleton College. The test stains Gram-positive bacteria, or bacteria that do not have an outer membrane. Gram-negative bacteria, which do have an outer membrane, don't pick up the stain. For example,S. pneumoniaeis a Gram...
HIV is a viral infection that slowly weakens your immune system. The virus kills a type of white blood cell called CD4. A normal CD4 count ranges from 500 to 2,000. You have HIV when your CD4 count ranges from 200 to 500. You have AIDS (acquired immune deficiency syndrome) when your...
Directions: For this part, you are allowed 30 minutes to write an essay that begins with the sentence“As is known to all, gaining a sound knowledge of the basics is of vital importance for students to master an academic sub...
1. What is the general structure of a virus? 2. How do viruses differ from bacteria? How are they similar? Viruses: Viruses are obligate parasites that replicate only in the living cells. They exist as non-infectious microscopic particles in the air. ...
Other causes. It could be that a virus or bacteria has infected your lungs. This is different from an allergic reaction. Your doctor will usually call thatpneumonia. Imaging tests, like X-rays and CT scans Aspirometrytest to show how much and how fast you breathe in and out ...
1. What is another name for a parasitic worm? 2. Which organism would be classifired as a prokaryote? Algae, fungi bacteria or a virus? What is a microorganism, and a pathogen? Give an example of one pathogen. Apart from bacteria, name another prokaryotic microorg...
It is suggested that these transporters may be part of a larger system of remote communication ('remote sensing and signalling') between cells, organs, body fluid compartments and perhaps even separate organisms. This broader view may help to clarify disease mechanisms, drug–metabolite interactions ...