Prevention and Control of Porcine Epidemic Diarrhea: The Development of Recombination-Resistant Live Attenuated Vaccines
Porcine epidemic diarrhea (PED), causing up to 100% mortality in neonatal pigs, is a highly contagious enteric disease caused by PED virus (PEDV). The highly virulent genogroup 2 (G2) PEDV emerged in 2010 and has caused huge economic losses to the pork industry globally. It was first reported in the...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-06-01
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| Series: | Viruses |
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| Online Access: | https://www.mdpi.com/1999-4915/14/6/1317 |
| _version_ | 1797481351522287616 |
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| author | Xiaoyu Niu Qiuhong Wang |
| author_facet | Xiaoyu Niu Qiuhong Wang |
| author_sort | Xiaoyu Niu |
| collection | DOAJ |
| description | Porcine epidemic diarrhea (PED), causing up to 100% mortality in neonatal pigs, is a highly contagious enteric disease caused by PED virus (PEDV). The highly virulent genogroup 2 (G2) PEDV emerged in 2010 and has caused huge economic losses to the pork industry globally. It was first reported in the US in 2013, caused country-wide outbreaks, and posed tremendous hardship for many pork producers in 2013–2014. Vaccination of pregnant sows/gilts with live attenuated vaccines (LAVs) is the most effective strategy to induce lactogenic immunity in the sows/gilts and provide a passive protection via the colostrum and milk to suckling piglets against PED. However, there are still no safe and effective vaccines available after about one decade of endeavor. One of the biggest concerns is the potential reversion to virulence of an LAV in the field. In this review, we summarize the status and the major obstacles in PEDV LAV development. We also discuss the function of the transcriptional regulatory sequences in PEDV transcription, contributing to recombination, and possible strategies to prevent the reversion of LAVs. This article provides insights into the rational design of a promising LAV without safety issues. |
| first_indexed | 2024-03-09T22:13:19Z |
| format | Article |
| id | doaj.art-634d4bc6e7a646d2b164b58c0cd3bf86 |
| institution | Directory Open Access Journal |
| issn | 1999-4915 |
| language | English |
| last_indexed | 2024-03-09T22:13:19Z |
| publishDate | 2022-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Viruses |
| spelling | doaj.art-634d4bc6e7a646d2b164b58c0cd3bf862023-11-23T19:27:20ZengMDPI AGViruses1999-49152022-06-01146131710.3390/v14061317Prevention and Control of Porcine Epidemic Diarrhea: The Development of Recombination-Resistant Live Attenuated VaccinesXiaoyu Niu0Qiuhong Wang1Center for Food Animal Health, Department of Animal Sciences, College of Food, Agricultural and Environmental Sciences, The Ohio State University, Wooster, OH 44691, USACenter for Food Animal Health, Department of Animal Sciences, College of Food, Agricultural and Environmental Sciences, The Ohio State University, Wooster, OH 44691, USAPorcine epidemic diarrhea (PED), causing up to 100% mortality in neonatal pigs, is a highly contagious enteric disease caused by PED virus (PEDV). The highly virulent genogroup 2 (G2) PEDV emerged in 2010 and has caused huge economic losses to the pork industry globally. It was first reported in the US in 2013, caused country-wide outbreaks, and posed tremendous hardship for many pork producers in 2013–2014. Vaccination of pregnant sows/gilts with live attenuated vaccines (LAVs) is the most effective strategy to induce lactogenic immunity in the sows/gilts and provide a passive protection via the colostrum and milk to suckling piglets against PED. However, there are still no safe and effective vaccines available after about one decade of endeavor. One of the biggest concerns is the potential reversion to virulence of an LAV in the field. In this review, we summarize the status and the major obstacles in PEDV LAV development. We also discuss the function of the transcriptional regulatory sequences in PEDV transcription, contributing to recombination, and possible strategies to prevent the reversion of LAVs. This article provides insights into the rational design of a promising LAV without safety issues.https://www.mdpi.com/1999-4915/14/6/1317porcine epidemic diarrhea viruslive attenuated vaccinesrecombinationsafety issue |
| spellingShingle | Xiaoyu Niu Qiuhong Wang Prevention and Control of Porcine Epidemic Diarrhea: The Development of Recombination-Resistant Live Attenuated Vaccines Viruses porcine epidemic diarrhea virus live attenuated vaccines recombination safety issue |
| title | Prevention and Control of Porcine Epidemic Diarrhea: The Development of Recombination-Resistant Live Attenuated Vaccines |
| title_full | Prevention and Control of Porcine Epidemic Diarrhea: The Development of Recombination-Resistant Live Attenuated Vaccines |
| title_fullStr | Prevention and Control of Porcine Epidemic Diarrhea: The Development of Recombination-Resistant Live Attenuated Vaccines |
| title_full_unstemmed | Prevention and Control of Porcine Epidemic Diarrhea: The Development of Recombination-Resistant Live Attenuated Vaccines |
| title_short | Prevention and Control of Porcine Epidemic Diarrhea: The Development of Recombination-Resistant Live Attenuated Vaccines |
| title_sort | prevention and control of porcine epidemic diarrhea the development of recombination resistant live attenuated vaccines |
| topic | porcine epidemic diarrhea virus live attenuated vaccines recombination safety issue |
| url | https://www.mdpi.com/1999-4915/14/6/1317 |
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