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A 23-Year-Old Man With Fever and Malaise
A 23-Year-Old Man With Fever and Malaise

... The use of NAAT from a public health perspective has been additionally investigated since the Baltimore study. A North Carolina study conducted between 2002 and 2003 investigated the utility of pooled NAAT in HIV screening. Of 109,250 patients tested at publicly funded sites, 583 were HIV-antibody p ...
Base Composition and Translational Selection are Insufficient to
Base Composition and Translational Selection are Insufficient to

... All organisms exhibit some degree of codon usage bias (CUB), the unequal usage of synonymous codons [1,2]. Codon bias may vary among genes of the same organism, which is associated with factors like asymmetrical mutation pressures or tissue-specific gene expression, but is relatively uniform within ...
HIV / AIDS - National Health Care for the Homeless Council
HIV / AIDS - National Health Care for the Homeless Council

... hen the first case of AIDS was reported in the USA in 1981, no one could have foreseen the impact of the HIV epidemic throughout the world. The prevalence of HIV/AIDS in homeless populations is unknown. Various studies have shown an incidence of HIV/AIDS to be from 3-20%. Homelessness itself is not ...
ppt
ppt

... u Exam to be returned Monday. Answer key is posted u Effects of population structure, admixture, selection, and mutation on LD u Admixture calculation ...
Genetic assimilation can occur in the absence of selection for the
Genetic assimilation can occur in the absence of selection for the

... An outline of the experiment in evolutionary time is shown in Fig. 3. An initial vector S(0) was generated randomly, with equal probabilities that S(0)i ¼ 1 or 0. The same initial vector was used for all individuals throughout evolution. Evolution was initiated with 500 genetically identical individ ...
De Jong`s Sphere Model Test for A Social
De Jong`s Sphere Model Test for A Social

... model. A two-dimensional Grid world is used here to arrange the individuals where these individuals interact with each other by the direct neighborhood of each individual [42]. These individuals will be distributed on a graph which is connected together; each individual connects with its neighborhoo ...
ABSTRACT Title of Document:
ABSTRACT Title of Document:

... two of this project, we wanted to determine if adaptation of an avian-human H9N2 reassortant in ferrets could support mammalian respiratory droplet transmission. Here we show for the first time that a reassortant virus carrying the HA and NA of an avian H9N2 virus can transmit in respiratory droplet ...
Reinvestigation of the role of the rabies virus glycoprotein in viral
Reinvestigation of the role of the rabies virus glycoprotein in viral

A 15-Myr-Old Genetic Bottleneck - University of California San Diego
A 15-Myr-Old Genetic Bottleneck - University of California San Diego

... populations with alleles accumulating until a balance is reached between selection favoring rarity and drift causing allele loss (Wright 1939; Lawrence 2000). Second, alleles are often very old because, if any allele drifts toward rarity, selection acts to increase its frequency (Ioerger et al. 1990 ...
Human - CSL Behring
Human - CSL Behring

... normal saline or 5% dextrose before administration. 200 mL per liter gives a solution which is approximately isotonic and iso‑osmotic with citrated plasma. When undiluted albumin solution is administered in patients with normal blood volume, the rate of infusion should be slow enough (1 mL per minut ...
Evolution and Extinction in a Changing Environment
Evolution and Extinction in a Changing Environment

... episodes of mass extinction and the physical factors that might have led to them. More recently, concern with basic factors that determine the vulnerability of small populations to extinction has driven the development of a substantial body of theory in conservation biology. In both of these fields, ...
Weak Selection and Protein Evolution
Weak Selection and Protein Evolution

... Genetics, National Institute of Genetics, 1111 Yata, Mishima, Shizuoka 411-8540, Japan. E-mail: [email protected] ...
Ebola Hemorrhagic Fever - International Journal of Infection
Ebola Hemorrhagic Fever - International Journal of Infection

... Republic of the Congo near the Ebola River. Since then, outbreaks have been reported, sporadically (1-3). The disease is first acquired by a population when a person comes in contact with the blood or bodily fluids of an infected animal such as a monkey or Fruit bat (1-5). Fruit bats are believed to ...
Highly Variable Mutation Rates in Commensal and Pathogenic
Highly Variable Mutation Rates in Commensal and Pathogenic

... other pathways leading to a mutator phenotype. Therefore, to detect a wide range of mutator effects, we undertook the screen of all mutational events leading to gene inactivation (6), unlike LeClerc et al. (3), who could detect only a few point mutations in the essential rpoB gene that confer resist ...
AMA 115 PowerPoint
AMA 115 PowerPoint

... Why is HIV dangerous? • The immune system is a group of cells and organs that protect your body by fighting disease. The human immune system usually finds and kills viruses fairly quickly. • So if the body's immune system attacks and kills viruses, what's the problem? • Different viruses attack diff ...
Introduction to Genetic Algorithms - computer science
Introduction to Genetic Algorithms - computer science

... the really bad strings will drop out. Linear Scaling is an example. B. Reproduction (Selection) Determine which strings are "copied" or "selected" for the mating pool and how many times a string will be "selected" for the mating pool. Higher performers will be copied more often than lower performers ...
Hepatitis Viruses PowerPoint - Cal State LA
Hepatitis Viruses PowerPoint - Cal State LA

... Use latex condoms during every sexual encounter with every sexual partner Don’t share items with an infected individual that might have their blood on it (i.e., toothbrush, razor, washcloth, or nail clippers) Avoid getting tattoos because transmission may occur through unsterilized tattoo or piercin ...
Modes of speciation in heterogeneous space
Modes of speciation in heterogeneous space

... we evaluate whether a stationary state N̄(x, r) with given wµ is unstable with respect to a small mutant population n(x, r; t) with different mating range. Successful mutants are found to invade the resident population completely, producing a new stationary state. A possible dependence wµ (x) due to ...
H1N1 Overview & Business Basics
H1N1 Overview & Business Basics

... Each year, seasonal flu costs the US economy over $10 billion in lost productivity and direct medical expenses. This year, it’s possible that H1N1 pandemic flu could have even greater impacts than seasonal flu. The number of ill employees could be disruptive to businesses. Preparing for H1N1 flu imp ...
Mycobacterium tuberculosis: low
Mycobacterium tuberculosis: low

... design and interpretation of molecular epidemiology studies. Reference laboratories that perform typing and susceptibility testing need to consider the provenance of the cultures submitted by the clinical microbiology laboratories that processed the primary specimen. A recent survey of 43 clinical l ...
Standard PDF - Wiley Online Library
Standard PDF - Wiley Online Library

... Pgi_111, which is a good measure of qi given that there are essentially two genotypes in this metapopulation (results were similar when qi was defined as the pooled frequency of the AC and CC genotypes). In the case of the smallest populations, allele frequencies are greatly affected by genetic drif ...
Genetic Basis of Variation in Bacteria
Genetic Basis of Variation in Bacteria

... chromosomal DNA from a male donor bacterium to a female recipient bacterium. Involves a sex (conjugation) pilus. Other plasmids present in the cytoplasm of the bacterium, such as those coding for antibiotic resistance, may also be transferred during this process. F can be transferred from E. coli to ...
Mutation Rates
Mutation Rates

... Ultimately, the source of genetic variation observed among individuals in populations is gene mutation. Mutation generates new alleles, and these are the substance of all evolutionary change. The mutation rate is defined as the probability that a copy of an allele changes to some other allelic form ...
Development of Neutral and Nearly Neutral Theories
Development of Neutral and Nearly Neutral Theories

... devoted to the symmetric overdominance model, even though this paper has mostly been cited for its neutral allele results. In the same year as the original proposal of the neutral theory, Kimura (1968b) expanded the CrowKimura analysis to the K-allele neutral model and obtained the equilibrium prob ...
2. Estimating θ - UNC Computational Genetics
2. Estimating θ - UNC Computational Genetics

... 3. Estimating ρ • Estimating ρ is hard, both statistically and computationally. – Using infinite side model, all mutation events can be listed whereas all recombination events cannot. A recombination can only be inferred with certainty if all four gametes are present. – The number of possible genea ...
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Viral phylodynamics



Viral phylodynamics is defined as the study of how epidemiological, immunological, and evolutionary processes act and potentially interact to shape viral phylogenies.Since the coining of the term in 2004, research on viral phylodynamics has focused on transmission dynamics in an effort to shed light on how these dynamics impact viral genetic variation. Transmission dynamics can be considered at the level of cells within an infected host, individual hosts within a population, or entire populations of hosts.Many viruses, especially RNA viruses, rapidly accumulate genetic variation because of short generation times and high mutation rates.Patterns of viral genetic variation are therefore heavily influenced by how quickly transmission occurs and by which entities transmit to one another.Patterns of viral genetic variation will also be affected by selection acting on viral phenotypes.Although viruses can differ with respect to many phenotypes, phylodynamic studies have to date tended to focus on a limited number of viral phenotypes.These include virulence phenotypes, phenotypes associated with viral transmissibility, cell or tissue tropism phenotypes, and antigenic phenotypes that can facilitate escape from host immunity.Due to the impact that transmission dynamics and selection can have on viral genetic variation, viral phylogenies can therefore be used to investigate important epidemiological, immunological, and evolutionary processes, such as epidemic spread, spatio-temporal dynamics including metapopulation dynamics, zoonotic transmission, tissue tropism, and antigenic drift.The quantitative investigation of these processes through the consideration of viral phylogenies is the central aim of viral phylodynamics.
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