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Questions tagged [infection]

An infection is caused by the invasion of by pathogenic organisms (bacteria, viruses or worms) into a host. These pathogenic organisms live and multiply in its host and cause diseases by this.

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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 ...
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How can Haemophilus influenzae survive and grow alone in the human body?

Haemophilus influenzae gets its name from the fact, that it requires nutrients from blood in order to grow. More specifically, I see it mentioned that in vitro they often exhibit the pheomenon that ...
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Would the microgravity “shape-shifting” bacteria effect have anything to do with bacteria growing in a host?

Phys.org's news article Why bacteria 'shapeshift' in space describes a recently published study Phenotypic Changes Exhibited by E. coli Cultured in Space, Zea Luis, Z. et al, 2017, Frontiers in ...
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Wolbachia - cytoplasmic incompatibility

I read that cytoplasmic incompatibility in Wolbachia occurs when wolbachia-infected male insects mate with wolbachia-free female insects and produce non-viable offspring. By contrast, wolbachia-...
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Does having a total gastrectomy (removal of the stomach) cause individuals to be more prone to infections?

If a patient has a complete removal of his/her stomach (i.e. a total gastrectomy), then does that cause a person to be more prone to infections from eating unsanitary food? I'm asking this question ...
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Are there any proteins not found in the brain that are affected by prions?

A prion is an abnormally folded protein that is capable of causing otherwise normal proteins to also misfold and become prions. They are responsible for causing diseases such as Kuru and Creutzfeldt–...
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What is this toad suffering from? Myiasis or chytridiomycosis?

I found this toad on Aug. 29th at this location: position on osm I think it is a bufo bufo, approx. 10 cm long. The nostrils seemed to be completely filled with a grey matter and from the activity of ...
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What properties of the pathogens of infectious diseases make recovered individuals susceptible to the disease?

I was wondering what properties of the pathogens of infectious diseases make these diseases more prone to making recovered individuals immediately susceptible to the disease? I was thinking that with ...
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Infecting yeast with viruses

Is there any virus, either natural or engineered, known to infect yeast through mechanisms similar to phages/human viruses, that is, by horizontal contamination mediated by extracellular viral ...
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Epidemic threshold on a directed network

I am trying to understand the equations used in a paper (https://www.nature.com/articles/srep00469.pdf) Mainly I'm trying to understand how the epidemic thershold was calculated using the ...
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What's the probability of a non-pathogenic strain becoming pathogenic from plasmids transmitted through the air?

So the thing is, I was getting a bacterial CRISPR kit for biology class, which is overall pretty simple and I'm just doing this for practice, and my dad was saying he was concerned it would ...
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Why are treatment periods with antibiotics longer than 1-2 days?

Antibiotics are given prophylactically for several indications (e.g. prior to dental surgery). Why are the treatment periods for prophylactic antibiotics much shorter than when treating an ...
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Why is squeezing not recommended after a needle prick?

I've read some interesting things about the risk of infection after a needle prick (30% - hepatitis B, 1.8% - hepatitis C and 0.3% - HIV), but I've also saw that the local squeezing is not recommended....
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Can different strains of Rhizobium share an infection thread or symbiosome?

Rhizobium infection can be triggered at root hairs of legumes, creating infection threads. Can these infections threads be colonized by more than one type of Rhizobium (e.g. Fixing and non-fixing)? ...
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Are most pathogenic bacteria facultative anaerobes?

I know that S. aureus and most gram-negative rods are facultative anaerobes. In terms of number of species, are most human pathogen-associated bacteria facultative anaerobes?
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Is swimming pool water actually a weak topical medication?

I was inspired by this question. Given that the chlorine levels in swimming pool water are so high that they can seriously harm amphibians, it seems logical that the water should also kill various ...
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How many cells are infected and destroyed during a normal influenza infection?

Basically, I would like to know for both an actual outbreak with symptoms as well as a prevented one. I have a hard time picturing how my body is damaged in such cases.