PMID- 19091492 OWN - NLM STAT- MEDLINE DCOM- 20090804 LR - 20090424 IS - 0378-1135 (Print) IS - 0378-1135 (Linking) VI - 136 IP - 3-4 DP - 2009 May 12 TI - Occurrence and transmission of Newcastle disease virus aerosol originating from infected chickens under experimental conditions. PG - 226-32 LID - 10.1016/j.vetmic.2008.11.002 [doi] AB - In order to better understand airborne transmission of Newcastle disease, a model system was established and two trials were conducted. Twenty-five principal specific pathogen free (SPF) chickens were inoculated with NDV and were housed in one isolator. 6 days after the chickens were challenged, 15 chickens were placed into another isolator which received its air supply from the first isolator. The NDV aerosol originating from inoculated chickens was collected with All Glass Impinger-30 (AGI-30) to study the occurrence and concentration of NDV aerosol. The antibody response to infection was assessed by the hemagglutination inhibition (HI) test and viral shedding was detected by RT-PCR and Dot-ELISA. NDV aerosol was initially detectable by RT-PCR and cell culture at day 2 or 3 post-inoculation (dpi). The aerosol concentration peaked at 1.69x10(4)PFU/m(3) air at 13dpi in trial 1, 9.14x10(3)PFU/m(3) air at 11dpi in trial 2 and was consistently detectable up to 40dpi. NDV shedding was detectable from 2 to 40dpi of inoculated chickens and from 6 days post-aerosol exposed infection (dpi) to 33dpi of aerosol exposed chickens. The viral strain induced high antibody level, both in inoculated and in aerosol exposed chickens. Airborne transmission did occur, as shown by NDV shedding and seroconversion to NDV in aerosol exposed chickens. The results indicated that viruses shed from infected chickens readily aerosolized and airborne transmission of NDV was possible. FAU - Li, Xiaoxia AU - Li X AD - College of Animal Science and Veterinary Medicine, Research Center for Animal Disease Control Engineering, Shandong Agricultural University, Tai'an, Shandong 271018, China. FAU - Chai, Tongjie AU - Chai T FAU - Wang, Zhiliang AU - Wang Z FAU - Song, Cuiping AU - Song C FAU - Cao, Hongjing AU - Cao H FAU - Liu, Jingbo AU - Liu J FAU - Zhang, Xingxiao AU - Zhang X FAU - Wang, Wei AU - Wang W FAU - Yao, Meiling AU - Yao M FAU - Miao, Zengmin AU - Miao Z LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20081111 PL - Netherlands TA - Vet Microbiol JT - Veterinary microbiology JID - 7705469 RN - 0 (Aerosols) RN - 0 (Antibodies, Viral) RN - 0 (RNA, Viral) SB - IM MH - Aerosols MH - *Air Microbiology MH - Animals MH - Antibodies, Viral/blood MH - Chick Embryo MH - *Chickens MH - Enzyme-Linked Immunosorbent Assay/veterinary MH - Hemagglutination Inhibition Tests/veterinary MH - Newcastle Disease/blood/transmission/*virology MH - Newcastle disease virus/genetics/isolation & purification/*physiology MH - RNA, Viral/chemistry/genetics MH - Reverse Transcriptase Polymerase Chain Reaction/veterinary MH - Specific Pathogen-Free Organisms MH - Virus Shedding EDAT- 2008/12/19 09:00 MHDA- 2009/08/06 09:00 CRDT- 2008/12/19 09:00 PHST- 2008/07/19 00:00 [received] PHST- 2008/10/26 00:00 [revised] PHST- 2008/11/04 00:00 [accepted] PHST- 2008/12/19 09:00 [entrez] PHST- 2008/12/19 09:00 [pubmed] PHST- 2009/08/06 09:00 [medline] AID - S0378-1135(08)00530-0 [pii] AID - 10.1016/j.vetmic.2008.11.002 [doi] PST - ppublish SO - Vet Microbiol. 2009 May 12;136(3-4):226-32. doi: 10.1016/j.vetmic.2008.11.002. Epub 2008 Nov 11.