CHAPTER 18 



Arthropods and Disease Transmission 



WHAT IS AN INSECT? 



HISTORY OF INSECT-BORNE DISEASES 



IMPORTANT INSECT VEC lORS 

 Flies 



Cockroaches 

 Mosquitoes 

 Ticks 

 Fleas 

 Mites 

 Lice 



PREVENTION OF THE SPREAD OF ARTHROPOD-BORNE DISEASES 



WHAT IS AN INSECT? 



Zoologists consider insects as any member of the class Insecta, 

 and true insects are six-legged arthropods, which are animals with 

 articulated bodies and jointed limbs. The more popular concept 

 of an insect is any one of numerous small invertebrate animals 

 belonging to a group including beetles, bugs, bees, flies, and 

 mosquitoes, and to allied groups of arthropods including spiders, 

 mites, ticks, and lice. 



HISTORY OF INSECT-BORNE DISEASES 



Edward A. Steinhaus (1947) in his book Insect Microbiology 

 has presented an extensive review of the literature dealing with 

 348 



