GAA: Cause of EMS identified

News 08:11 13/05/2013 502
The Global Aquaculture Alliance on Wednesday announced after months of investigation by research team at the University of Arizona, the pathogen causing early mortality syndrome (EMS).

The researchers found that EMS is caused by a bacterial agent, which is transmitted orally, colonizes the shrimp gastrointestinal tract and produces a toxin that causes tissue destruction and dysfunction of the shrimp digestive organ known as the hepatopancreas. It does not affect humans.

Lightner’s team identified the EMS/AHPNS pathogen as a unique strain of a relatively common bacterium, Vibrio parahaemolyticus, that is infected by a virus known as a phage, which causes it to release a potent toxin. A similar phenomenon occurs in the human disease cholera, where a phage makes the Vibrio cholerae bacterium capable of producing a toxin that causes cholera’s life-threatening diarrhea.

GAA said research continues on the development of diagnostic tests for rapid detection of the EMS/AHPNS pathogen that will enable improved management of hatcheries and ponds, and help lead to a long-term solution for the disease. It will also enable a better evaluation of risks associated with importation of frozen shrimp or other products from countries affected by EMS.

Some countries have implemented policies that restrict the importation of frozen shrimp or other products from EMS-affected countries. The researchers frozen shrimp likely pose a low risk for contamination of wild shrimp or the environment because EMS-infected shrimp are typically very small and do not enter international commerce. Also, repeated attempts to transmit the disease using frozen tissue were unsuccessful.

Since EMS was first reported in China in 2009, it has spread to Vietnam, Malaysia and Thailand, and now causes annual losses more than USD 1 billion. EMS outbreaks typically occur within the first 30 days after stocking a newly prepared shrimp pond, and mortality can exceed 70 percent.

Bạn đang đọc bài viết GAA: Cause of EMS identified tại chuyên mục News của Hiệp hội VASEP

TIN MỚI CẬP NHẬT

VASEP published Report on Vietnam seafood exports in 2025

 |  11:00 11/02/2026

(seafood.vasep.com.vn) The year 2025 marked a pivotal milestone for Vietnam’s seafood industry in its restructuring process toward sustainability, transparency, and higher value creation, amid continued uncertainties in the global economic and trade environment. Prolonged inflation in major economies, the rising trend of trade protectionism, and increasingly stringent requirements related to environmental standards, traceability, and social responsibility have posed significant challenges to seafood production and exports. Nevertheless, overcoming these pressures, Vietnam’s seafood sector has gradually demonstrated its adaptability, maintained growth momentum, and laid an important foundation for the next stage of development.

Ca Mau’s shrimp-rice model proves effective in climate change adaptation

 |  09:28 09/02/2026

(seafood.vasep.com.vn) Amid the increasingly evident impacts of drought and saltwater intrusion, the shrimp-rice production model in Ca Mau province continues to prove itself as a viable direction, contributing to higher farmer incomes, improved soil conditions and the promotion of ecological and sustainable agricultural development.

Lam Dong tightens fishing vessel management in decisive crackdown on IUU fishing

 |  15:02 06/02/2026

(seafood.vasep.com.vn) The management of fishing vessels, monitoring of fishing activities, and handling of violations in the fisheries sector in Lam Dong province have continued to be implemented in a synchronized and stringent manner, contributing to raising awareness of legal compliance among fishermen and aiming to end illegal, unreported and unregulated (IUU) fishing.

Can Tho’s fishery output hits nearly 783,000 tons in 2025.

 |  15:12 04/02/2026

(seafood.vasep.com.vn) Can Tho’s fishery industry sustained steady growth in 2025 with total aquatic and marine output reaching nearly 783,000 tons, fulfilling 100% of the annual target. Aquaculture, capture fisheries and fishing fleet management were further strengthened, aiming for sustainable development in the coming years.

Pangasius exports in 2025 exceed USD 2 billion, with strong growth in multiple markets

 |  16:26 02/02/2026

(seafood.vasep.com.vn) In 2025, Vietnam’s pangasius export turnover reached nearly USD 2.2 billion, up 8% year-on-year. This result indicates that pangasius exports maintained their growth momentum despite significant volatility in the global market environment. In December 2025, pangasius export value reached USD 200 million, up 10% compared to December 2024. This solid performance in the final month of the year reflects increased import demand for consumption and inventory replenishment in key markets.

Vietnam’s tuna exports to Spain shift sharply toward processed segments

 |  09:48 26/01/2026

(seafood.vasep.com.vn) In 2025, Vietnam’s tuna exports to Spain experienced significant fluctuations. According to Vietnam Customs, during the first 11 months of 2025, export turnover for the first 11 months of the year edged up by 0.3% year-on-year, reaching nearly $15 million.

VIFTA expands opportunities for Vietnamese seafood enterprises in the Israeli market

 |  09:02 22/01/2026

(seafood.vasep.com.vn) Deputy Prime Minister Bui Thanh Son has signed Decision No. 16/QD-TTg, dated January 5, 2026, approving the implementation plan for the Vietnam-Israel Free Trade Agreement (VIFTA). Under the plan, in the coming period, ministries, ministerial-level agencies, government-affiliated entities and People’s Committees of provinces and centrally-run cities must institutionalize and execute tasks focused on the dissemination of information regarding VIFTA and the Israeli market; legislative and institutional development, as well as enhancing competitiveness and human resource growth...

Vietnam’s fish cake and surimi exports surge, EU market emerging as a late-2025 growth driver

 |  09:43 20/01/2026

(seafood.vasep.com.vn) Beyond achieving double-digit growth, Vietnam’s fish cake and surimi exports are showing a notable year-end "inflection point": the EU his accelerating with nearly twofold growth, China & Hong Kong are rising sharply, while the largest market, South Korea, signaled a slowdown in November. According to Vietnam Customs data, export turnover of fish cake and surimi reached $327 million in the first 11 months of 2025, up 22% year-on-year; November 2025 alone accounted for $35 million, marking a 5% increase. This serves as a critical foundation for exporters to reassess market structures and competitive intensity while finalizing order strategies for 2026.

Ca Mau leads the nation in shrimp output

 |  10:08 16/01/2026

(seafood.vasep.com.vn) Ca Mau, widely regarded as the nation’s “shrimp capital”, continued its strong performance in 2025 as shrimp output reached nearly 600,000 tons, maintaining its position as Vietnam’s leading shrimp-producing locality.

Pangasius fingerling prices hit record highs

 |  15:21 14/01/2026

(seafood.vasep.com.vn) On December 29, 2025, at the 2025 Pangasius Industry Review Conference held in Can Tho City, the Vietnam Pangasius Association announced that fingerling prices have surged to record levels due to acute supply shortages.

VASEP - HIỆP HỘI CHẾ BIẾN VÀ XUẤT KHẨU THỦY SẢN VIỆT NAM

Chịu trách nhiệm: Ông Nguyễn Hoài Nam - Phó Tổng thư ký Hiệp hội

Đơn vị vận hành trang tin điện tử: Trung tâm VASEP.PRO

Trưởng Ban Biên tập: Bà Phùng Thị Kim Thu

Giấy phép hoạt động Trang thông tin điện tử tổng hợp số 138/GP-TTĐT, ngày 01/10/2013 của Bộ Thông tin và Truyền thông

Tel: (+84 24) 3.7715055 – (ext.203); email: kimthu@vasep.com.vn

Trụ sở: Số 7 đường Nguyễn Quý Cảnh, Phường An Phú, Quận 2, Tp.Hồ Chí Minh

Tel: (+84) 28.628.10430 - Fax: (+84) 28.628.10437 - Email: vasephcm@vasep.com.vn

VPĐD: số 10, Nguyễn Công Hoan, Ngọc Khánh, Ba Đình, Hà Nội

Tel: (+84 24) 3.7715055 - Fax: (+84 24) 37715084 - Email: vasephn@vasep.com.vn

© Copyright 2020 - Mọi hình thức sao chép phải được sự chấp thuận bằng văn bản của VASEP

DANH MỤC