How do viruses reproduce using the machinery of the cell? Explain where viruses come from. Why do they require the host's cellular machinery? Define a virus. Define a cell. Are viruses cells? Compare and contrast viruses and cells.
Immunizations work by pre-infecting the body so it knows how to produce the right antibodies as soon as the virus starts reproducing. Also, because viruses reproduce so quickly and so often, they can often change slightly. Sometimes, mistakes creep into their genetic instructions. These changes ...
How does a virus enter the body? The human body has several lines of defence against pathogens including viruses.Physical barriersinclude the skin and mucous membranes. Thenon specific immune responseinvolves cells from the immune system attempting to destroy pathogens inside the body. Finally theadap...
Is the rabies vaccine a live virus? How does the rabies virus reproduce? What are the symptoms of the rabies virus? What kills the rabies virus? Do all dogs have the rabies virus? How long can a virus live outside its host's body?
Viruses lack the chemical machinery that human cells use to support life. So, HIV requires a host cell to stay alive and replicate. To reproduce, the virus creates new virus particles inside a host cell, and those particles carry the virus to new cells. Fortunately the virus particles are ...
1970s.7However, the virus was first discovered 2 decades earlier when monkeys in a research laboratory in Denmark were infected during an outbreak. That case inspired its name, but the natural reservoirs where this virus lives and reproduces are actually African rodents—monkeys a...
to live no longer than 120 years.However,110 years is probably the longest that anyone could hope to live---if he or she is extremely healthy and lucky.Some scientists even say we can live as long as 130 years!Yet,our cells simply cannot continue to reproduce (2)...
How did the first animals reproduce? Mysterious creatures reveal clues.MeredithHamiltonStaffwriterEBSCO_AspChristian Science Monitor
such as a message that the virus will display on the screen when activated, or it might be binary computer code or even a particular bit of data that is embedded in the virus. These patterns are identified by technicians at organizations specializing in computersecurityand are then made availab...
What we generally call "stomach flu" is actually a rotovirus or norovirus infection that causes nausea, vomiting, diarrhea, fever, and general discomfort. Go to the next page to learn about avoiding and treating the stomach flu. This information is solely for informational purposes. IT IS NOT...