Infection Specialists in ESI, Delhi

What is Infection?

Infection is the invasion and multiplication of disease-causing microorganisms, including bacteria, viruses, fungi, or parasites, within the tissues of the body, triggering an immune response that often produces characteristic signs of illness. Infections can be localized to a specific site, such as a wound or the urinary tract, or become systemic, spreading through the bloodstream to affect multiple organs, a serious condition known as sepsis. The severity of an infection depends on the type and virulence of the causative organism, the site involved, and the strength of the individual's immune system. Laboratory testing, including cultures, blood tests, and molecular assays, is essential to identify the specific causative organism and guide appropriate targeted treatment.

Causes of Infection

Infections occur when microorganisms such as bacteria, viruses, fungi, or parasites breach the body's natural defenses, such as intact skin or mucous membranes, and multiply within tissue faster than the immune system can eliminate them. Transmission can occur through direct contact, respiratory droplets, contaminated food or water, insect bites, or medical procedures that breach normal barriers. Risk factors for developing infection include a weakened immune system, chronic diseases such as diabetes, invasive medical devices, and poor hygiene or sanitation.

Symptoms of Infection

fever and chills, localized redness, warmth, swelling, or pain at the site of infection, fatigue and general malaise, elevated white blood cell count on blood tests, pus or abnormal discharge, swollen lymph nodes near the infected area, rapid heart rate and confusion in severe cases

Treatment & Types of Infection in ESI, Delhi

Treatment depends entirely on the causative organism identified through laboratory testing; bacterial infections are treated with targeted antibiotics, viral infections with antiviral medications or supportive care, fungal infections with antifungal agents, and parasitic infections with antiparasitic drugs. Supportive measures such as fluids, rest, fever control, and wound care are used alongside specific treatment to aid recovery. Severe or systemic infections may require hospitalization for intravenous antimicrobial therapy and close monitoring for complications such as sepsis.

Infections are broadly classified by causative organism into bacterial, viral, fungal, and parasitic types, each requiring a different treatment approach. They are also categorized by extent as localized, confined to one site such as a wound or the urinary tract, or systemic, spreading through the bloodstream to affect multiple organs as in sepsis, and by duration as acute or chronic, such as tuberculosis or chronic hepatitis.

Pathology & Laboratory Medicine Specialists in ESI, Delhi (0)

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