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Define Evolution of virulence?
Diseases like cholera emerge as sudden outbreaks, showing marked variation via space and time both in their incidence--the number of individuals infected in a population--and in their virulence--the damage a pathogen does to its victim in the course of implementation its life cycle by replicating and infecting other hosts. Epidemiologists have long studied how frequency of viral, bacterial, and metazoan parasites can fluctuate in response to modifications in infectiousness and transmission which are in turn driven by social, economic, and medical trends. More currently, they have begun to appreciate that virulence is as well dynamic, evolving fast in response to similar factors that drive pathogen numbers.
Why is the human placenta referred to as haemochorial type? Name the hormone it secretes to facilitate parturition.
Q. What is the significance of the -R group (variable radical) in an amino acid molecule? The -R group, also known as lateral chain, is the variable part of the amino acid mole
Explain the Economic and Social Burden ? Cardio-vascular diseases pose tremendous economic strain on the population and the countries throughout the world. However there is a d
Amiodarone, quinidine, propafenone, and verapamil may increase digoxin levels up to 100 per cent. It is prudent to measure a blood level after 7-14 days (and at least 6 hours after
how to explain an example from each class of vertebrate
1. This is very prolonged phase, and differs from the prophase of mitosis, because in this Chromosomes behave as homologous pairs. 2. Each diploid cell has two chromosomes of ea
Antibacterial activity Rifaximin reaches high concentrations in the intestinal tract and is active in vitro against a broad range of enteropathogens, including ETEC, EAEC, Shi
Q. Why some trees lose their green color in the autumn? In autumn nights longer and days become shorter thus there is a reduction of the photosynthesis rate and some plants pre
Explain Adverse effects of Stavudine Fatal lactic acidosis may happen more frequently with stavudine than with other NRTIs. Serum aminotransferase activity may enhance with sta
what is universality of genetic code
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