Man back from Thailand, neighbours say his is clumsy, unkempt, clothes look loose, which lead to diagnosis

1… man back from Thailand, neighbours say his is clumsy, unkempt, clothes look loose, which lead to diagnosis
a. hiv serology
b. ct brain
c. thick and thin smear

2… single man come from thailand two months ago,now his neighbour told you that he became agitated and strange behavior wearing dirty clothes,on examination he has lap?
a.hiv serology
b.malaria
encephalitis
c. ebv