Nosocomial Myiasis Caused by Lucilia sericata (Diptera: Calliphoridae) and Neonatal Myiasis by Sarcophaga spp. (Diptera: Sarcophagidae) in Mexico

Abstract

The presence of nosocomial myiasis reflects a lack of adequate medical attention, due to the physical facilities and/or the health care personnel. Patients requiring special attention are more susceptible, such as those with a loss of consciousness, assisted mechanical ventilation, tracheal tubes, or nasogastric probes. Nosocomial myiasis is a rare event that has a greater occurrence in the hospitals of poor and developing countries. The two cases herein described represent the first report of nosocomial myiasis in Mexico. The causal agents were found to be Lucilia sericata and Sarcophaga spp. The taxonomical identification of the larvae of the second and third instar was based on the morphology of the cephaloskeleton, anterior spiracles, and peritreme plaques.

Nosocomial Myiasis Caused by Lucilia sericata (Diptera: Calliphoridae) in a Pediatric Patient in Mexico

“…Including this publication, five cases of human myiasis have been reported in Mexico of which three correspond to nosocomial myiasis. L. sericata is the causative agent of two of the three reported cases of nosocomial myiasis [15,16], similar to that reported in the United States, Iran, Czech Republic, and Turkey [17][18][19], where the causative agent of nosocomial myiasis was L. sericata. Nosocomial myiasis occurs in immobile, weakened, seriously ill, semiconscious, or unconscious patients with multiple risk factors, such as the presence of trauma, surgical or puncture wounds, abscess drainage, assisted breathing and tracheal tubes, or injuries secondary to continuous exposure of mucous membranes [6,14].…”

“…Nosocomial myiasis occurs in immobile, weakened, seriously ill, semiconscious, or unconscious patients with multiple risk factors, such as the presence of trauma, surgical or puncture wounds, abscess drainage, assisted breathing and tracheal tubes, or injuries secondary to continuous exposure of mucous membranes [6,14]. Our patient had several known risk factors: he was unconscious and intubated, mechanically ventilated, and had poor oral hygiene, which were the same risk factors reported in patients in the United States and in the two patients previously reported by our research group [15]. Our case is the third report of nosocomial myiasis in Mexico and the first of a pediatric patient hospitalized in PICU.…”

Umbilical Myiasis by Cochliomyia hominivorax in an Infant in Colombia

“…The largest case collection of umbilical myiasis was carried out in Nigeria, where active detection in a region of the Niger Delta resulted in 55 cases of omphalitis (16). Other anatomical sites of myiasis in human neonates include the nostrils (17), ear (18), skin (19), and genitals (20).…”

Los enviados de Belcebú: Moscas y mosquitos (Diptera) exóticos con interés médico y veterinario en México

“…Se alimenta de materia orgánica en descomposición y heces. Puede funcionar como vector mecánico de diversos organismos patógenos y se ha informado como miasígena en México (Martínez-Rojano et al, 2018). 5.…”