Friday 4 March 2016

Why you need to be concerned about those bedbugs (Abet Tonny, Makerere Biomedical Lab Scientist)


Bedbugs are exclusively blood sucking insects that bite and feed on man among other warm blooded animals. A typical adult bedbug sucks 0.5ml of blood to get engorged each night it attacks the victim posing a great risk of anemia for occupants of heavily infested premises. Bedbugs and their bites present huge psychological torture commonly portrayed as illusionary parasitosis, an unsettling situation where one frequently and involuntarily senses an insect crawling or biting him even when nothing like that is transpiring (at least 70% of a students in an infested residence in Makerere area experience this condition). Clinical risks like transmission of drug resistant bacteria (i.e methicillin-resistantStaphylococcus aureus (MRSA) and vancomycin-resistant Enterococcus faecium (VRE)  ) and a parasite called T. cruzi which causes Chagas disease, a disease that erodes the heart. Over 40 microorganisms that cause diseases to humans have been detected in bedbugs. The bites also potentiate secondary infections like Hepatis B Virus (an infection that accounts for over 70% of liver cancer cases) from their feces or when an infected bedbug raptures on ones skin in its feeding event. As mentioned earlier, anemia has been reported in the elderly and very young in cases where homes are heavily infested. Asthma has also been linked to the presence of bed bugs in homes. The public health impacts of toxic pesticides often massively applied indoor have not been well assessed either but I believe it is accounting for a good portion of your hospital visits as it lowers the efficiency of your body and immune system. Economically, CBS reported in 2010 that more than US $ 250 million a year is spent fighting bedbugs in USA. In Uganda, it is hard to gauge the approximate revenue due to many smart players who have swallowed all the risks never to register their firms but the few pest controlling firms I consulted confessed experiencing more than double rises in their revenues from bedbug control alone as heavy bedbug explosion drills and wrecks the rich and the poor as if it were the day of judgment and also the number of pest control companies (registered and unregistered) rising by over 50% to take lucrative free shares of national economy through the calamity. Bedbugs are some of the hardest pests to eradicate once they invade an accommodation due to many factors including their inherent nature of fast development of resistance to insecticides, feeding regiments in that they can go for days without feeding so may not be exposed for killing by contact chemicals whenever that service provider sprays and their body structure which allows them hide deep in cracks and crevices that the chemical may never penetrate.  These all combined present enormous financial impact on the victims as one need two or more frequent expensive visits of the pest control service provider for a success story to yield. Infestation of bedbugs is socially believed to be an infestation of the in-hygienic and the poor and thus for bedbug to be spotted on once dress, shirt or possession especially in public is a massive embarrassment with due reduction in self-esteem to the victim. Having bed bugs may restrict the social lives of people. Sufferers avoid visiting friends and family and often throw away belongings, at great cost, and minimal benefit. Tenant-landlord disputes over who is responsible continue to take place and these battles can be damaging to both parties. The infestations of bedbugs also have direct impact of lowering residential and accommodation markets. A study conducted at Makerere, Kampala showed highly infested premises either having unrented rooms or charging 30-50% less than the “bug-free” residences. Hotels, apartments and tourism sector even have a better side of the experience in that clients may not only regret ever coming to your premise but will probably provide the official denouncing services for your premise more loudly via social media platform and the wipe out costs are often appreciable.

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