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Results tagged with infectious-diseases
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user 27148
14
votes
How do eradicated diseases make a comeback?
Type 2 polio was still included in vaccines up until 2016. Recipients of the polio vaccine become immune, but in rare cases it's possible for vaccinated people to transmit disease to unvaccinated peop …
- 47.2k
43
votes
Accepted
Why do diseases in the tap water of developing countries affect people from developed countr...
You can expect that someone drinking from a water source regularly will develop immunity to the pathogens in that water source by being repeatedly exposed to them.
However, it's not quite right to say …
- 47.2k
0
votes
Why is bacterial meningitis worse than viral meningitis?
I think the question is fine, though some might find it too broad and it is hard to give a precise answer.
It's really just because they are two different diseases, the only thing that is the same is …
- 47.2k
3
votes
Accepted
A study found that the hepatitis C virus can live on surfaces for six weeks. Did they end th...
The place to find this information would be the Methods section of the paper.
We spotted 33 µL of plasma spiked with HCVcc on the 24-well plates. They were either immediately tested for viable vir …
- 47.2k
9
votes
Accepted
We know that the hepatitis C virus can live on surfaces for at least six weeks. Maybe longer...
They ran out of samples
Their test is destructive, they can't test the same sample twice. They planned out a number of samples to test for each time period and tested them. At the end of six weeks, t …
- 47.2k
9
votes
How does the first organism infected by a disease get infected?
Viruses evolve like all other biological species. The family of SIVs that gave rise to HIV goes back millions of years across many hosts.
Just like you can build a "family tree" out of related plant o …
- 47.2k