Emerging virus d r a mjr thrt to humn nd vtrnr ubl hlth. Wth nw xml urrng rxmtl n h r, th mjrt r vru originating frm an animal ht. Of th mn ftr rnbl, hng t local tm that rturb th bln between pathogen nd principal ht one f the mjr drivers, tgthr wth nrng urbnztn f mnknd nd hng n humn bhvr. Mn mrgng viruses hv RNA gnm and as uh r bl f rapid mutation and ltn f nw variants in the f f environmental hng n ht numbers nd vlbl trgt .
Emrgng d is a term ud wth nrng frequency t drb th rn of n t unrgnzd infection, r a previously recognized nftn tht h xndd nt a new lgl nh r ggrhl zn nd ftn mnd b a gnfnt change n pathogenicity. Th k mg tht these r rrnttv f ntntl evolving nftn rndng to rd hng in the rltnh between pathogen and ht.
Outbrk f emerging diseases vary wdl n duration, frequency nd case numbr. Some can be predicted urrng nnull, for xml nflunz, whereas many decades m elapse between d, the case with Marburg virus. Plnnng a ngl, ntgrtd trtg against
ll vntult thrfr lmt mbl, a tk mundd b ndrtn t lkl mrgn f escape mutant in ultn vntd against known d, th emergence of trn resistant to antiviral therapy, or vn th rlng through lvtk of ttnutd vn dgnd for u xluvl in humn
Imrvd dmlgl urvlln f nftu diseases th fundtn for immediate and lng- trm trtg for mbtng mrgng diseases. This nd t be supplemented b adequate trnng of lnn nd diagnostic microbiologists n ll t f the ntrl of infectious disease. Unfortunately, utbk in available rur hv mrgnlzd specific training n emerging nftn n many untr, wll lmtd the availability of ntnmnt flt nr fr the safe hndlng nd hrtrztn of positive lt.