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Page 352
Don Ramsay Arthur. CHAPTER XII RICKETTSIAE TRANSMITTED BY TICKS Rickettsiae Rickettsiae constitute a group of micro - organisms commonly , though not necessarily , found in the tissues of arthropods . They were named in honour of Howard ...
Don Ramsay Arthur. CHAPTER XII RICKETTSIAE TRANSMITTED BY TICKS Rickettsiae Rickettsiae constitute a group of micro - organisms commonly , though not necessarily , found in the tissues of arthropods . They were named in honour of Howard ...
Page 353
... rickettsiae develop best when tissue metabolism is at a low level , which is the converse of the requirements for viruses . Doubtless the necessity for the use of living cells in culture work of this kind is the need of the rickettsiae ...
... rickettsiae develop best when tissue metabolism is at a low level , which is the converse of the requirements for viruses . Doubtless the necessity for the use of living cells in culture work of this kind is the need of the rickettsiae ...
Page 369
... rickettsiae can also pass through collodion membranes ( pore size of 400μ ) and Berkefeld N filters , which are impermeable to ordinary bacteria and to the rickettsiae of endemic typhus and Rocky Mountain spotted fever . It fails ...
... rickettsiae can also pass through collodion membranes ( pore size of 400μ ) and Berkefeld N filters , which are impermeable to ordinary bacteria and to the rickettsiae of endemic typhus and Rocky Mountain spotted fever . It fails ...
Contents
INTRODUCTION | 1 |
CUTICLETHE KEY TO TICK ADAPTABILITY | 10 |
EXTERNAL FEATURES OF SOME ECONOMICALLY IMPORTANT SPECIES | 27 |
Copyright | |
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activity Africa Amblyomma andersoni animals appear areas argasid Argasidae attached Babesia basis capituli bite body Boophilus broad capitulum cattle cells Cervical grooves cheliceral colour coxa coxal cuticle cytoplasm Dermacentor disease dogs dorsal view eggs endocuticle engorged epicuticle evertsi external spur feeding fluid fully fed genus granules Haemaphysalis hairs hard ticks hexagonus Hoogstraal host humidity Hyalomma hypostome infection Ixodes ricinus Ixodidae large number larvae larvae and nymphs lateral layer Lees legs length louping ill lumen male membrane microplus Milne moult muscles Nuttall nymphal nymphs nymphs and adults occur palp palpi parasites Parasitology pathogens period persicus pharynx Pomerantzev posterior margin punctations rabbits relapsing fever reported Rhipicephalus rickettsiae rounded salivary glands sanguineus scutum sheep soft ticks spermatophore spiracle Spiracular plate spirochaetes spotted fever spur on coxa surface tarsus tarsus IV temperature Theileria tick species tissues transmission transmitted transverse unfed females variabilis vector ventral virus whilst