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--- virus [2022/04/13 22:26]
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+++ virus [2022/10/06 10:03] (current)
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 A **virus** is a [[nucleotide]] sequence that can only replicate within a host [[organism]]. Viruses can infect animals, plants, and bacteria.
-  * [[virus|International Committee on Taxonomy of Viruses]]
+  * [[virus:International Committee on Taxonomy of Viruses]]
@@ Line 26: / Line 26: @@
     * Cellular heterogeneity lies at the basis of tumor progression.
     * Prions become heterogeneous by accumulating protein-folding mutants.
+===== Challenges in Studying Viruses =====
+Viruses are challenging to isolate since they require cells for replication.((November 11, 2020 | Rachael Krishna | [[https://fullfact.org/health/Covid-isolated-virus/|The Covid-19 virus has been isolated many times]])) Viruses including [[viruses:rhinovirus]] and [[viruses:bovine diarrhea virus]] have been isolated, sometimes using intermediate tissue cultures.(([[https://www.sciencedirect.com/topics/immunology-and-microbiology/virus-isolation]]))
+===== Pathogenic Viruses =====
+Most scientists believe that a small portion of viruses are [[pathogenic]] to their hosts.
+==== Medical Testing ====
+  * [[virus:Testing for Viruses in Humans]]
 ===== Links to Sort =====
 https://www.ncbi.nlm.nih.gov/labs/pmc/articles/PMC6797082/
+https://journals.plos.org/plosgenetics/article?id=10.1371/journal.pgen.1008271
+https://harvard2thebighouse.substack.com/p/understanding-covid-19-and-seasonal