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Anaplasmosis occurs in '''tropical''' and subtropical regions, particularly South and Central America, USA, Africa, Australia and Southern Europe. This climate supports the insect and mechanical vectors required for transmission of the parasite.
 
Anaplasmosis occurs in '''tropical''' and subtropical regions, particularly South and Central America, USA, Africa, Australia and Southern Europe. This climate supports the insect and mechanical vectors required for transmission of the parasite.
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==Transmission and Lifecycle==
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==Transmission==  
 
Anaplasmosis is '''not directly contagious''' and most transmission occurs via ticks.  
 
Anaplasmosis is '''not directly contagious''' and most transmission occurs via ticks.  
Any stage of the tick’s lifecycle can become infected with Anaplasma organisms.
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After development within the tick, the final infective stage is within the '''salivary glands''' and is injected into the bloodstream of the host when the parasite bloodfeeds. Male ticks are more mobile and longer lived therefore may play a bigger role.
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See [[Tick Disease Transmission]] for more information on ticks as disease vectors.
      
Infected [[erythrocytes]] are disrupted and release bodies which can invade other erythrocytes. These bodies form vacuoles within the cytoplasmic membranes of the [[erythrocytes | red blood cells]] and then undergo binary fission to form inclusion bodies. This amplifies infection within the host and increases the likelihood of transmission when insects bloodfeed.
 
Infected [[erythrocytes]] are disrupted and release bodies which can invade other erythrocytes. These bodies form vacuoles within the cytoplasmic membranes of the [[erythrocytes | red blood cells]] and then undergo binary fission to form inclusion bodies. This amplifies infection within the host and increases the likelihood of transmission when insects bloodfeed.
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