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Diphtheria01:28

Diphtheria

Diphtheria is an acute, toxin-mediated infectious disease that primarily affects the upper respiratory tract. It is caused by Corynebacterium diphtheriae, a Gram-positive, pleomorphic rod that lacks spore-forming capability and exhibits a characteristic club-shaped morphology under microscopic examination. While C. diphtheriae can asymptomatically colonize mucosal surfaces, clinical disease manifests only when the bacterial strain is lysogenized by a specific β-corynephage. This phage...
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Trichomonas vaginalis is a flagellated protozoan parasite and the causative agent of trichomoniasis, one of the most prevalent non-viral sexually transmitted infections in the United States. This extracellular parasite primarily colonizes the lower genitourinary tract in women—particularly the vagina—and in men, the urethra and prostate. Its structural and functional adaptations enable its survival, motility, and pathogenicity within the host environment.Structural Features and Host EntryT.
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Updated: Jun 24, 2026

Determining Soil-transmitted Helminth Infection Status and Physical Fitness of School-aged Children
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Pediatric trichinosis: A case report.

Endeshaw Asaye Kindie1, Elizabeth Hailemelekot Sirak2, Tufa Gemechu Weyessa3

  • 1University of Gondar, College of Medicine and Health Sciences, Ethiopia.

International Journal of Surgery Case Reports
|November 13, 2024
PubMed
Summary

Neck trichinosis, a rare parasitic infection, can present as lateral neck swelling, mimicking other conditions like lymphoma. Early diagnosis through muscle biopsy and prompt treatment with albendazole and prednisolone are crucial for patient recovery.

Keywords:
AlbendazoleMuscle biopsyNematodesRaw meatTrichinosis

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Area of Science:

  • Parasitology
  • Infectious Diseases
  • Clinical Medicine

Background:

  • Trichinellosis is a zoonotic parasitic disease caused by Trichinella roundworms, with reservoir animals including pigs, wild boars, bears, rodents, and horses.
  • The global incidence of human trichinellosis is approximately 10,000 cases annually, with prevalence highest in temperate climates.

Observation:

  • A 10-year-old male presented with a significant lateral neck swelling (6x4 cm), initially posing a diagnostic challenge.
  • The swelling was firm, non-tender, and clinically mimicked other conditions such as lymphoma.

Findings:

  • Muscle biopsy confirmed the presence of Trichinella larvae, establishing the diagnosis of neck trichinosis.
  • The patient received a 14-day course of albendazole and prednisolone, resulting in a favorable clinical outcome.

Implications:

  • Lateral neck swelling can be an atypical presentation of trichinosis, necessitating its consideration in differential diagnoses, especially in endemic regions.
  • Prompt diagnosis and management of trichinosis are essential to prevent complications and ensure successful treatment.