ziviso

Iyo Novel Langya virus (LayV) yakaonekwa kuChina  

Maviri henipaviruses, Hendra utachiwana (HeV) uye Nipah utachiwana (NiV) inotozivikanwa kuti inokonzera chirwere chinouraya muvanhu. Ikozvino, chinyorwa chinonzi henipavirus chakaonekwa muvarwere vane febrile kuEast China. Iri i phylogenetically distinct strain ye henipavirus uye yakanzi Langya henipavirus (LayV). Varwere vaive nenhoroondo ichangoburwa yekusangana nemhuka, saka zvichikurudzira mhuka kuenda kumunhu. Izvi zvinoratidzika kunge zvichangoburwa utachiwana izvo zvine zvazvinoreva zvakasimba pautano hwevanhu.  

Hendra utachiwana (HeV) uye Nipah utachiwana (NiV), yerudzi rweHenipavirus mu utachiwana mhuri Paramyxoviridae yakabuda munguva pfupi yapfuura. Ose ari maviri ane mhosva yezvirwere zvinouraya muvanhu nemhuka. Genome yavo ine RNA ine tambo imwe yakakomberedzwa nehamvuropu yelipid.  

Hendra utachiwana (HeV) yakatanga kuzivikanwa muna 1994-95 kuburikidza nekuputika mumusha weHendra muBrisbane, Australia apo mabhiza mazhinji nevarairidzi vavo vakatapukirwa uye vakakundwa nechirwere chemapapu nemamiriro ekubuda ropa. Nipah hutachiona (NiV) yakatanga kuzivikanwa makore mashoma gare gare muna 1998 muNipah, Malaysia zvichitevera kubuda kwenzvimbo. Kubva ipapo, kwave nezviitiko zvakati wandei zveNIV pasirese munyika dzakasiyana kunyanya muMalaysia, Bangladesh, neIndia. Zvirwere izvi zvaiwanzobatanidzwa nekufa kwakanyanya pakati pevanhu nezvipfuwo.  

Chibereko batsva (Pteropus), inozivikanwawo segava rinobhururuka, matura emhuka ezvese Hendra utachiwana (HeV) uye Nipah utachiwana (NiV). Kutapurirana kunoitika kubva kumaremwaremwa kuburikidza nemate, weti, uye tsvina kuenda kuvanhu. Nguruve inzvimbo yepakati yeNipah nepo mabhiza ari epakati mauto eHeV neNiV.  

Muvanhu, hutachiona hweHeV hunoratidza zviratidzo zvefuruwenza isati yasvika kune inouraya encephalitis nepo hutachiona hweNiV hunowanzo ratidza sehurwere hwetsinga uye acute encephalitis uye, mune dzimwe nguva, chirwere chekufema. Kutapurirana kumunhu-ku-munhu kunoitika munguva yekupedzisira yehutachiona1.  

Henipaviruses ane pathogenic zvakanyanya. Aya ndiwo ari kukurumidza kubuda zoonotic ma virus. Muna Chikumi 2022, vaongorori vakashuma hunhu hweimwe henipavirus inonzi, Angavokely utachiwana (AngV)2. Izvi zvakaonekwa mune weti samples kubva kusango, Madagascar fruit bats. Iyo genome inoratidza ese makuru maficha ane hukama ne pathogenicity mune mamwe henipaviruses. Izvi zvakare zvinogona kuita dambudziko kana zvikasarurwa kuvanhu, zvichipihwa chokwadi chekuti zviremwaremwa zvinodyiwa sechikafu muMadagascar.  

Pana 04 Nyamavhuvhu 2022, vaongorori3 yakashumwa kuzivikanwa (hunhu uye kuparadzaniswa) kweimwezve novel henipavirus kubva pahuro swab yevarwere vane febrile panguva yekutariswa kwevarindi. Vakatumidza rudzi urwu kuti Langya henipavirus (LayV). Iyo phylogenetically inoenderana neMojiang hepatitis. Vakaona varwere makumi matatu nevashanu vane hutachiona hweLayV mumatunhu eShandong neHenan China. Hapana humwe hutachiona hwaivepo mu26 yevarwere ava. Vese varwere vane LayV vaive nefivha uye zvimwe zvezvimwe zviratidzo. Shiri dzinoita kunge dziva remusikirwo reLayV, sezvo ongororo yemhuka diki yakaratidza kuvepo kweLayV RNA mu27% yemashrew, 2% yembudzi uye 5% yembwa.

Zvakawanikwa pachidzidzo ichi zvinoratidza kuti hutachiona hweLayV hwaive hwakonzeresa fivha uye zviratidzo zvinosanganisirwa pakati pevarwere vakadzidzwa uye mhuka diki dzepamba ndidzo dzaive pakati peLayV. utachiwana.  

*** 

References:  

  1. Kummer S, Kranz DC (2022) Henipaviruses-Kutyisidzira kunogara kuchipfuyo nevanhu. PLoS Negl Trop Dis 16(2): e0010157. https://doi.org/10.1371/journal.pntd.0010157  
  1. Madera S., and said 2022. Discovery and Genomic Characterization of Novel Henipavirus, Angavokely virus, kubva kumiti yemichero kuMadagascar. Yakatumirwa June 24, 2022. Preprint bioRxiv doi: https://doi.org/10.1101/2022.06.12.495793  
  1. Zhang, Xiao-Ai and said 2022. A Zoonotic Henipavirus muFebrile Varwere muChina. Nyamavhuvhu 4, 2022. N Engl J Med 2022; 387:470-472. DOI: https://doi.org/10.1056/NEJMc2202705 

*** 

Umesh Prasad
Umesh Prasad
Mutori wenhau weSainzi | Muvambi mupepeti, magazini yeScientific European

Subscribe to Newsletter yedu

Kuti ivandudzwe nenhau dzese dzichangoburwa, zvinopihwa uye zviziviso zvakakosha.

Akakurumbira Zvinyorwa

Kunyengedza Muviri: Nzira Itsva Yekudzivirira Yekupedza Allergy

Chidzidzo chitsva chinoratidza nzira itsva yekugadzirisa ...

COVID-19: Chii Chinorevei Kusimbiswa kweAirborne Transmission yeSARS-CoV-2 Virus Zvinorevei?

Pane humbowo hwakawanda hwekusimbisa kuti iyo inotonga ...

Mishonga yeCOVID-19: Mujaho Unopesana Nenguva

Kuvandudzwa kwemushonga wekudzivirira COVID-19 chinhu chakakosha pasi rose....
- Advertisement -
92,780Fansse
47,293Followerstevera
1,772Followerstevera
30SubscribersSubscribe