Medical Microbiology

Platyhelmintha(syn.Platyhelminthes) 563

TaeniasaginataandT.solium:LifeCycles

a

b

6

5

4

a

b

a b

1a

1b

2

3

b

a

3a

Fig. 1 0. 8 1a,bGravidsegmentcontainingeggsofT.solium(a)andofT.saginata

(b); 2 freeTaeniaeggs; 3 naturalintermediatehostsofT.saginata(cattle)andT.

solium(pigs);3ahumanasaccidentalhostofT.solium;4a,binfectivemetaces-

todesofT.solium(a)andofT.saginata(b);5a,bthesamemetacestodeswith

protoscolecesevaginated;6a,b“armed”headofT.solium(a)and“unarmed”

headofT.saginata(b)fromhumansmallintestine(modifiedafterPiekarski,

G.,MedizinischeParasitologieinTafeln.2nded.,Berlin:Springer; 19 73).

Reddotsinhumanhost:possiblelocationofT.soliummetacestodes.

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Kayser, Medical Microbiology © 2005 Thieme