Acute Infection
Acute Infection - Related Videos
07:55
Ex Vivo Organotypic Corneal Model of Acute Epithelial Herpes Simplex Virus Type I Infection
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Cited by 27 •
2012
In this video article we describe the use of a new ex vivo model of acute herpes simplex virus type I corneal epithelial infection.
16:56
Sublingual Immunotherapy as an Alternative to Induce Protection Against Acute Respiratory Infections
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Cited by 4 •
2014
The present work illustrates the convenience of using sublingual immunotherapy to boost the innate immune response in the lungs and confer protection against acute pneumococcal pneumonia in mouse.
13:22
Measurement of γHV68 Infection in Mice
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Cited by 1 •
2011
γ-Herpesviruses (γ-HVs) establish life-long persistency in their host. Infection of mice with γ-HV68 provides a genetically tractable in vivo model for the characterization of the lifecycle/pathogenesis of γHVs. This protocol describes the detection and quantitation of γHV68 infection at acute and latent stages following infection by plaque-forming, infectious center, and qPCR assays.
09:54
Chronic, Acute, and Reactivated HIV Infection in Humanized Immunodeficient Mouse Models
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Cited by 4 •
2019
Described here are three experimental approaches for studying the dynamics of HIV infection in humanized mice. The first permits the study of chronic infection events, whereas the two latter allows for the study of acute events after primary infection or viral reactivation.
14:10
Protocol for Plasmodium falciparum Infections in Mosquitoes and Infection Phenotype Determination
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Cited by 9 •
2007
Once a gene is identified as potentially refractory for malaria, it must be evaluated for its role in preventing Plasmodium infections within the mosquito. This protocol illustrates how the extent of plasmodium infections of mosquitoes can be assayed. The techniques for preparing the gametocyte culture, membrane feeding mosquitoes human blood, and assaying viral titers in the mosquito midgut are demonstrated.
FAQs
Microbial components activate innate immune receptors, which start signaling pathways that coordinate the earliest host response. These signals promote inflammation, recruit immune cells, and can activate complement or antiviral and antibacterial defenses. In acute infection research, tracing this sequence helps connect pathogen recognition with containment, symptom development, and the possibility of inflammation-driven tissue injury.
Complement and antiviral or antibacterial defenses add protective mechanisms to receptor-triggered inflammation. They can support the host's effort to contain invading microorganisms while immune cells are recruited to the affected site. Examining which defenses are engaged helps researchers distinguish aspects of host protection and understand how early responses influence the course and consequences of infection.
Adaptive immunity develops as the infection progresses, adding a later layer to the immediate innate response. Studying this transition helps explain how initial recognition and inflammation are followed by more specialized immune activity. It also provides context for vaccine design, because vaccine research applies knowledge of immune responses to improve protection against infection.
Inflammation is protective when it helps recruit immune cells and supports containment, but it can also damage host tissues. This dual effect makes inflammatory signaling an important research focus: investigators can examine not only whether defenses respond, but also whether the response produces immune-mediated outcomes that contribute to disease.
By examining both the invading microorganism and the host response, researchers can clarify how pathogens cause disease and how host defenses contain them. This paired perspective is useful because symptoms and disease outcomes reflect interactions among microbial activity, immune recognition, cell recruitment, complement or antimicrobial defenses, and possible tissue damage.
Findings from acute infection research can identify how microbial recognition and inflammatory signaling relate to disease, creating knowledge relevant to diagnostic development. Such work may help connect detectable infection-related responses with the underlying host-pathogen interaction, while also showing why immune activity and tissue damage must be considered when interpreting disease-associated outcomes.
Acute infection research informs antimicrobial treatment and vaccine design by clarifying how pathogens cause disease and how immune defenses respond. It can also support evaluation of immune-mediated outcomes, including harmful tissue effects from inflammation. Together, these applications connect mechanistic immunology with efforts to control infection, improve prevention, and assess consequences for the host.