Instruct: Identify the main category of Biorxiv papers based on the titles and abstracts
Query: Infection, recovery and re-infection of farmed mink with SARS-CoV-2 Mink, on a farm with about 15,000 animals, became infected with SARS-CoV-2. Over 75% of tested animals were positive for SARS-CoV-2 RNA in throat swabs and 100% of tested animals were seropositive. The virus responsible had a deletion of nucleotides encoding residues H69 and V70 within the spike protein gene. The infected mink recovered and after free-testing of the mink, the animals remained seropositive. During follow-up studies, after a period of more than 2 months without virus detection, over 75% of tested animals scored positive again for SARS-CoV-2 RNA. Whole genome sequencing showed that the virus circulating during this re-infection was most closely related to the virus identified in the first outbreak on this farm but additional sequence changes had occurred. Animals had much higher levels of anti-SARS-CoV-2 antibodies after re-infection than at free-testing. Thus, following recovery from an initial infection, seropositive mink rapidly became susceptible to re-infection by SARS-CoV-2.

Article Summary LineFollowing widespread infection with SARS-CoV-2 of mink on a farm, all tested animals had seroconverted and the farm was then tested free of infection; however, less than 3 months later, a further round of infection affected more than 75% of tested animals.
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The categories of this paper are: biology
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The categories of this paper are: bioengineering
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The categories of this paper are: physiology
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The categories of this paper are: cell
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The categories of this paper are: genetics
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The categories of this paper are: animal
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The categories of this paper are: cancer
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The categories of this paper are: systems
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The categories of this paper are: toxicology
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The categories of this paper are: bioinformatics
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The categories of this paper are: scientific
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The categories of this paper are: pharmacology
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The categories of this paper are: communication
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The categories of this paper are: pathology
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The categories of this paper are: zoology
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The categories of this paper are: immunology