▁Jeff rey ▁report ▁over ▁thirty ▁different ▁types ▁of ▁species , ▁which ▁vary ▁by ▁ge ographic ▁region . ▁ ▁Inc ub ation ▁period ▁Information ▁about ▁the ▁pre pat ent ▁period , ▁or ▁the ▁period ▁of ▁time ▁between ▁the ▁in fection ▁of ▁the ▁par as ite ▁and ▁demonstr ation ▁of ▁that ▁par as ite ▁within ▁the ▁body , ▁of ▁P . ▁mal aria e ▁associated ▁mal aria ▁is ▁limited , ▁but ▁the ▁data ▁suggests ▁that ▁there ▁is ▁great ▁variation , ▁often ▁the ▁length ▁of ▁time ▁depending ▁on ▁the ▁stra in ▁of ▁P . ▁mal aria e ▁par as ite . ▁Usually , ▁the ▁pre pat ent ▁period ▁ranges ▁from ▁ 1 6 ▁to ▁ 5 9 ▁days . ▁ ▁In fection ▁in ▁humans ▁Pl as mod ium ▁mal aria e ▁causes ▁a ▁chron ic ▁in fection ▁that ▁in ▁some ▁cases ▁can ▁last ▁a ▁lifetime . ▁The ▁P . ▁mal aria e ▁par as ite ▁has ▁several ▁differences ▁between ▁it ▁and ▁the ▁other ▁Pl as mod ium ▁par as ites , ▁one ▁being ▁that ▁maximum ▁par as ite ▁counts ▁are ▁usually ▁low ▁compared ▁to ▁those ▁in ▁patients ▁inf ected ▁with ▁P . ▁fal ci par um ▁or ▁P . ▁viv ax . ▁The ▁reason ▁for ▁this ▁can ▁be ▁account ed ▁for ▁by ▁the ▁lower ▁number ▁of ▁m ero zo ites ▁produced ▁per ▁er yth ro cy t ic ▁cycle , ▁the ▁longer ▁ 7 2 - hour ▁development al ▁cycle ▁( comp ared ▁to ▁the ▁ 4 8 - hour ▁cycle ▁of ▁P . ▁viv ax