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Bed bug

Effects of Bed Bug Bites on Humans: – Bed bug bites can cause skin rashes, psychological effects, and allergic symptoms. – Symptoms may include redness, […]

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Effects of Bed Bug Bites on Humans:
– Bed bug bites can cause skin rashes, psychological effects, and allergic symptoms.
– Symptoms may include redness, blisters, itchiness, tiredness, and fever.
– Bites primarily affect uncovered body areas.
– Bed bug bites are not known to transmit infectious diseases.
– Infestations are more common in high-density areas rather than due to lack of hygiene.

Bed Bug Bites and Treatment:
– Bed bug bites typically result in itching, reddish lesions, and blisters.
– Lesions can range from small spots to prominent blisters.
– Bites are usually found on exposed skin areas like arms, legs, and face.
– Reactions to bites vary from no effect to intense itching and rash.
– Treatment involves preventing repeated bites and using antihistamines or corticosteroids.

Bed Bug Infestation and Management:
– Infestation not caused by lack of hygiene.
– Transfer to new places through personal items.
– Eradication most effective with non-chemical methods.
– Vacuuming as a non-chemical control method.
– Insecticides mostly ineffective due to resistance.

Bed Bug Description and Detection:
– Bed bugs are about 4-5 mm long and primarily consist of two species: Cimex lectularius and Cimex hemipterus.
– Symptoms caused by bedbug bites.
– Bed bug detection dogs trained for pinpointing infestations.
– Homemade detectors developed for detection.
– Differential detection with other conditions.

Distribution and Historical Context of Bed Bugs:
– Bed bugs are found worldwide.
– Before the 1950s, around 30% of US homes had bed bugs.
– Cimicidae, ancestors of modern bed bugs, emerged 115 million years ago.
– Bed bugs were mentioned in ancient Greece as early as 400 BC.
– Bed bugs were common until the mid-20th century.

Bed bug (Wikipedia)

Bed bugs are parasitic insects from the genus Cimex, who are micropredators that feed on blood, usually at night. Their bites can result in a number of health impacts, including skin rashes, psychological effects, and allergic symptoms. Bed bug bites may lead to skin changes ranging from small areas of redness to prominent blisters. Symptoms may take between minutes to days to appear and itchiness is generally present. Some individuals may feel tired or have a fever. Typically, uncovered areas of the body are affected. Their bites are not known to transmit any infectious disease. Complications may rarely include areas of dead skin or vasculitis.

Bed bug
Other namesCimicosis, bed bug bites, bedbugs, bed bug infestation
An adult bed bug (Cimex lectularius) with the typical flattened oval shape
SpecialtyFamily medicine, dermatology
SymptomsNone to prominent blisters, itchiness
Usual onsetMinutes to days after the bite
CausesCimex (primarily Cimex lectularius and Cimex hemipterus)
Risk factorsTravel, second-hand furnishings
Diagnostic methodBased on finding bed bugs and symptoms
Differential diagnosisAllergic reaction, scabies, dermatitis herpetiformis
TreatmentSymptomatic, bed bug eradication
MedicationAntihistamines, corticosteroids
FrequencyRelatively common

Bed bug bites are caused primarily by two species of insects: Cimex lectularius (the common bed bug) and Cimex hemipterus, found primarily in the tropics. Their size ranges between 1 and 7 mm. They spread by crawling between nearby locations or by being carried within personal items. Infestation is rarely due to a lack of hygiene but is more common in high-density areas. Diagnosis involves both finding the bugs and the occurrence of compatible symptoms. Bed bugs spend much of their time in dark, hidden locations like mattress seams, or cracks in a wall.

Treatment is directed towards the symptoms. Eliminating bed bugs from the home is often difficult, partly because bed bugs can survive up to approximately 300 days without feeding. Repeated treatments of a home may be required. These treatments may include heating the room to 50 °C (122 °F) for more than 90 minutes, frequent vacuuming, washing clothing at high temperatures, and the use of various pesticides.

Fossils found in Egypt show bed bugs have been known as human parasites for at least 3,500 years. Despite being nearly eradicated in developed countries after World War II, infestations have increased since the 1990s and bed bugs are now relatively common in all regions of the globe. Experts point to several factors that have contributed to the explosion in infestations over the last three decades: increased immigration and international travel; expanded markets for second-hand goods; a greater focus on control of other pests; and both the banning of effective pesticides and increased resistance to pesticides still in use.

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