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Related Concept Videos

Preclinical Development: Overview01:28

Preclinical Development: Overview

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Preclinical development consists of a series of tests that ensure the safety and efficacy of a new therapeutic compound before it is tested in humans. There are four main phases to this process. First, safety pharmacology tests are conducted to ensure the drug does not produce any acutely harmful effects. These tests examine parameters such as bronchoconstriction, cardiac dysrhythmias, blood pressure changes, and ataxia. Next, preliminary toxicological testing is performed to determine the...
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Clinical trials are prospective experimental studies conducted on humans to determine the safety and efficacy of treatments, drugs, diet methods, and medical devices. Using statistics in clinical trials enables researchers to derive reasonable and accurate conclusions from the collected data, allowing them to make wise decisions in uncertain situations. In medical research, statistical methods are crucial for preventing errors and bias.
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Microorganisms in Medicine and Therapeutics

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Microorganisms play a fundamental role in vaccine development, gene therapy, and therapeutic production. Their biological properties are harnessed to advance medicine and public health. Beyond immunization, microorganisms contribute to gut health, antibiotic synthesis, and genetic disease treatment.Live Attenuated and Inactivated VaccinesLive attenuated vaccines, such as the measles, mumps, and rubella (MMR) vaccine, utilize weakened forms of pathogens to closely resemble natural infections.
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Related Experiment Video

Updated: Dec 24, 2025

Live Imaging and Quantification of Viral Infection in K18 hACE2 Transgenic Mice Using Reporter-Expressing Recombinant SARS-CoV-2
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COVID-19: From bench to bed side.

Akriti Singh1, Altamash Shaikh2, Ritu Singh3

  • 1College of Medicine & JNM Hospital, Kalyani, Nadia, West Bengal, India.

Diabetes & Metabolic Syndrome
|April 14, 2020
PubMed
Summary
This summary is machine-generated.

Severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) is more infectious but generally causes milder illness than SARS-CoV-1 and MERS-CoV. However, COVID-19 has higher fatality rates in patients with comorbidities.

Keywords:
COVID-19MERSSARS-Co-V-2SARS-CoV-1Viral dynamics

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Area of Science:

  • Virology
  • Epidemiology
  • Clinical Medicine

Background:

  • The last two decades have seen outbreaks of three major coronaviruses: SARS-CoV-1, MERS-CoV, and SARS-CoV-2.
  • Understanding the differences in viral dynamics and clinical presentations is crucial for public health.

Purpose of the Study:

  • To delineate the differences in viral dynamics and clinical features among SARS-CoV-1, MERS-CoV, and SARS-CoV-2.
  • To provide essential details about SARS-CoV-2 (COVID-19) for healthcare providers.

Main Methods:

  • Systematic literature search of PubMed up to April 2, 2020.
  • Inclusion of articles focusing on viral dynamics of SARS-CoV-2, SARS-CoV-1, and MERS-CoV.

Main Results:

  • Significant differences exist in etiology, transmission, diagnosis, genetics, hosts, reproductive rates, clinical features, and radiological findings among the three coronaviruses.
  • Data suggests variations in viral dynamics and clinical presentations across SARS-CoV-1, MERS-CoV, and SARS-CoV-2.

Conclusions:

  • SARS-CoV-2 is more infectious than SARS-CoV-1 and MERS-CoV, with most infections being mild and self-limiting.
  • COVID-19 exhibits a higher case-fatality rate in patients with comorbidities compared to SARS-CoV-1 and MERS-CoV.