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4 votes
1 answer
122 views

When is it useful to give a vaccine post-infection?

I was reading this answer about the rabies vaccine, which explains that giving the vaccine post-exposure is effective because the vaccine stimulates a more rapid immune response than the infection ...
Mikayla Eckel Cifrese's user avatar
-2 votes
1 answer
78 views

Fluctuations in disease burden of respiratory viruses (especially influenza/coronaviruses)

Compared to peaks in terms of disease burden (morbidity and mortality, or incidence of severely symptomatic cases and deaths caused by a viral strain within a population), is the relatively light ...
Lorenzo's user avatar
  • 115
1 vote
0 answers
25 views

SARS-COV-2 detectability versus viability

This week (#47 of 2020) two meta-reviews were published in the Lancet. Ct values and infectivity of SARS-CoV-2 on surfaces, a brief review published on 19 November in The Lancet Infectious Diseases, ...
thegreatwhatsit's user avatar
0 votes
0 answers
33 views

How antibodies are produced in our body against intracellular proteins of infectious bacteria?

When an infectious agent invades our body, then surface antigens of the infectious agent are detected by our immune system and B-cells get activated. However, we do have antibodies in our blood ...
Mahasish's user avatar
3 votes
1 answer
211 views

What differentiates diseases like Covid-19 and Polio from the common cold

Why are vaccines required for our body's immune system to destroy viruses that cause the likes of Covid-19 or Polio, while viruses that cause the common-cold are self-limiting (go away on their own)? ...
jyp11711's user avatar
1 vote
0 answers
68 views

Is slow growth a virulence factor?

Many slow-growth pathogens (e.g. Mycobacterium tuberculosis, lentivirus, Rhabdovirus, Leptospira spp) are difficult to treat. In addition, a review of 61 pathogens found that slower growing ...
CoffeeIsLife's user avatar
2 votes
1 answer
132 views

Why reaginic antibodies are absent in these types of syphilis?

According to Textbook of Microbiology and Immunology 2e, Subhash Chandra Parija, pg.no; 375 These(reaginic) antibodies do not appear in early primary syphilis, latent acquired syphilis of long ...
JM97's user avatar
  • 4,836
3 votes
0 answers
61 views

Can immune cells be recruited to an area of inflammation, and later go on to a second?

With regards to innate or adaptive immune cells... can naive/immature cells such as neutrophils, monocytes, macrophage/dendritic cells or adaptive T-cells be recruited to an area of inflammation, for ...
Harry's user avatar
  • 31