8

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, they were done. It doesn't really matter The point of the paper is that HCV is infectious long-term on surfaces when not cleaned properly, indicating there is ...


5

Hepatitis is a condition of the liver where the cells of the liver organ are inflamed. Most often it is caused by a viral infection, hepatitis A, B and C are all viral forms of the disease. Bacteria (and Fungi) can cause hepatitis of the liver, and two examples would be the Staphylococcal and Streptococcal bacteria. These can directly infect the liver, and ...


4

Is it feasible to eradicate a virus without vaccines? It is possible? I would say yes. But feasible... I think not. Consider this, once vaccinated, a person is usually immune to the virus. And you only need the vaccine to take hold, for an individual to acquire life time immunity. However with drug treatment... even once the treatment succeeds, the person ...


3

The suffix '-itis' (-ῖτις, in ancient greek) usually is added to a word to represent a pathological condition called inflammation. So, haepatitis (or hepatitis) means generically inflammation of liver (ἧπαρ épar, in ancient greek). Usually it is caused by viruses such as HAV, HBV, and HCV. An haepatitis can be due also to toxic agents or be autoimmune ....


3

The last sentence of the question doesn't make it clear what's being asked. But it seems to be asking: What version of Hepatitis did he get from the contaminated blood? To that end... Serum antigen of HB tells us about the levels of IgM and IgG. If vaccinated, then IgG should be positive, I think? What does HBsAg tell you? HBsAg gives you the knowledge ...


3

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 virus or stored at 4°C, 22°C, and 37°C for up to 6 weeks before testing. They tested their samples for (up to) 6 weeks. At the time of the 6th week they still ...


2

To the question I would say certainly yes, since the only viruses that have been eradicated (to my knowledge) are smallpox and rinderpest, both via vaccine campaigns (as well as the usual tools of quarantine/isolation). Note: I did not mean to suggest that "if drugs are widely available they will definitely eradicate HCV". I interpreted the question as "if ...


1

Antibodies are produced after exposure to cognate antigen. Remember that B cells start off expressing membrane IgM and/or IgD. IgA requires class switching recombination at the B-cell receptor locus to the IgA isotype. Further differentiation of the B cells to antibody-secreting plasma cells results in soluble IgA production and immunologic memory to the ...


1

I'm not sure that I have understood the question but ... HbeAg is a secreted variant of HbcAg (the core antigen of HBV). Unlike HbcAg, HbeAg is found in the blood. I believe that it is produced as a result of a splice variant of the corresponding RNA. The phenomenon described in these Figures is an example of seroconversion. Before seroconversion the ...


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