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Viral Infection

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Abstract

Viruses are agents that contain machinery allowing them to replicate within host cells, often to the detriment of those infected. The impact of viral infections can range from relatively benign, such as the common cold, to devastating and lethal, such as hantavirus. Unlike bacterial and fungal microorganisms, there are less available therapeutics for viral infection. Diagnostics continue to improve although are often based on nucleic acid testing so may not be agnostic if infection is caused by a virus for which common assays do not contain primers.

In this century, severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) and the disease it causes, coronavirus disease 2019 (COVID-19), have caused a massive pandemic with high rates of global morbidity and mortality. During my time in fellowship, writing my notes about diagnostics and treatments for SARS-CoV-2 felt like describing shipbuilding while aboard the Titanic. As a field, clinical virology has made large strides in response to the pandemic, although there is still much work to be done. In this chapter, we will discuss common hepatitis viruses; examine some concepts involving herpesviruses, cytomegalovirus, and adenovirus; and review the management of COVID-19.

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Tatara, A.M. (2023). Viral Infection. In: The Infectious Diseases Consult Handbook. Springer, Cham. https://doi.org/10.1007/978-3-031-39474-4_8

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