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Multistate Outbreak of Salmonella Infections Linked to Organic Sprouted Chia Powder

Posted July 17, 2014 12:30 PM ET

At a Glance:

Latest Case Count Map
Latest Epi Curve

Highlights

July 17, 2014

Case Count Update

As of July 14, 2014, a total of 25 ill persons infected with the outbreak strains of Salmonella Newport (16 persons), Salmonella Hartford (7 persons), or Salmonella Oranienburg (2 persons) have been reported from 14 states. Since the last update on June 11, 2014, 4 additional ill persons have been reported from New York (1), Rhode Island (1), and Texas (2).

Among persons for whom information is available, dates that illnesses began range from January 21, 2014 to June 21, 2014. Ill persons range in age from 1 year to 81 years, with a median age of 45 years. Sixty percent of ill persons are female. Among 20 ill persons with available information, three (15%) report being hospitalized. No deaths have been reported.

Illnesses that occurred after June 27, 2014, might not yet be reported due to the time it takes between when a person becomes ill and when the illness is reported. This takes an average of 2 to 4 weeks. The recalled products containing organic sprouted chia powder have a long shelf life and may still be in people’s homes, and illnesses may continue to be reported. Please see the Timeline for Reporting Cases of Salmonella Infection for more details.

Investigation Update

Epidemiologic and traceback findings have linked this outbreak of Salmonella infections to various brands of organic sprouted chia powder.

FDA laboratory sampling identified Salmonella Gaminara from one sample of Organic Traditions Sprouted Chia Seed Powder. A search of the PulseNet database did not identify any human isolates matching this pattern of Salmonella Gaminara.

The National Antimicrobial Resistance Monitoring System (NARMS) is a U.S. public health surveillance system that tracks antibiotic resistance in foodborne and other enteric bacteria found in humans, retail meats and poultry, and food-producing animals. NARMS is an interagency partnership among CDC, the U.S. Food and Drug Administration (FDA), U.S. Department of Agriculture (USDA), and state and local health departments.

The NARMS human surveillance program at CDC monitors antibiotic resistance in Salmonella and other bacteria isolated from clinical specimens submitted to NARMS by public health laboratories.  CDC's NARMS laboratory conducted antibiotic resistance testing on four isolates collected from ill persons infected with the outbreak strains of Salmonella Hartford (two isolates) and Salmonella Newport (two isolates). Of the four isolates tested, all were pansusceptible (susceptible to all antibiotics on the NARMS panel).

The Public Health Agency of Canada and the Canadian Food Inspection Agency continue to investigate similar cases of Salmonella infection in several Canadian provinces. CDC, state, local, and Canadian public health partners are continuing laboratory surveillance through PulseNet to identify additional ill persons and to interview ill persons about foods eaten before becoming ill. The U.S. Food and Drug Administration (FDA) continues to work closely with CDC and other partners in this investigation.

June 11, 2014

Case Count Update

Product testing of a sample of leftover Navitas Naturals Organic Sprouted Chia Powder collected from an ill person’s home in Connecticut isolated the outbreak strains of Salmonella Newport and Salmonella Hartford, and an additional serotype, Salmonella Oranienburg. A search of the PulseNet database identified a total of two ill persons infected with the same strain of Salmonella Oranienburg in two U.S. states. This strain of Salmonella Oranienburg has been seen before in PulseNet, one case per month on average. Initial interviews with ill persons suggested a link to the ongoing outbreak investigation, so these illnesses have been combined with the existing Salmonella Newport and Salmonella Hartford infections previously identified.

As of June 9, 2014, a total of 21 ill persons infected with the outbreak strains of Salmonella Newport (13 persons), Salmonella Hartford (6 persons), or Salmonella Oranienburg (2 persons) have been reported from 12 states. The number of ill persons identified in each state is as follows: Arizona (1), California (3), Colorado (1), Connecticut (3), Florida (1), Massachusetts (1), Michigan (1), New York (4), Ohio (1), Utah (1), Washington (1), and Wisconsin (3).

Among persons for whom information is available, dates that illnesses began range from January 21, 2014 to May 21, 2014. Ill persons range in age from 1 year to 81 years, with a median age of 49 years. Sixty-two percent of ill persons are female. Among 15 ill persons with available information, 2 (13%) report being hospitalized. No deaths have been reported.

Illnesses that occurred after May 13, 2014 might not yet be reported due to the time it takes between when a person becomes ill and when the illness is reported. This takes an average of 2 to 4 weeks. The recalled products containing organic sprouted chia powder have a long shelf-life and may still be in people’s homes, and illnesses may continue to be reported. Please see the Timeline for Reporting Cases of Salmonella Infection for more details.

Investigation Update

Epidemiologic and traceback findings have linked this outbreak of Salmonella infections to various brands of organic sprouted chia powder.

In interviews, ill persons are answering questions about foods eaten and other exposures in the week before becoming ill. To date, 16 (100%) of 16 persons interviewed reported eating chia seeds or powder, and 11 (73%) of 15 persons who identified the type of chia product consumed reported eating chia powder specifically.

Laboratory testing conducted by public health laboratories in Connecticut, Massachusetts, and New York isolated one or more of the outbreak strains from 5 samples of leftover Navitas Naturals products containing organic sprouted chia powder collected from ill persons’ homes and 2 samples of unopened Navitas Naturals products containing organic sprouted chia powder collected from retail locations.

The Public Health Agency of Canada and the Canadian Food Inspection Agency continue to investigate similar cases of Salmonella infection in several Canadian provinces. CDC, state, local, and Canadian public health partners are continuing laboratory surveillance through PulseNet to identify additional ill persons and to interview ill persons about foods eaten before becoming ill. The U.S. Food and Drug Administration (FDA) is continuing to work closely with CDC and other partners in this investigation.

June 3, 2014

Case Count Update

Through a collaborative investigation with the Public Health Agency of Canada (PHAC), a total of five ill persons infected with a strain of Salmonella Hartford matching an outbreak strain in Canada have been identified through PulseNet in five U.S. states. This strain of Salmonella Hartford has never been seen before in PulseNet. Initial interviews with ill persons suggested a link to the ongoing Salmonella Newport outbreak investigation in the United States. These illnesses have been combined with the existing Salmonella Newport infections previously identified as part of this investigation.

As of June 2, 2014, a total of 17 ill persons infected with the outbreak strains of Salmonella Newport (12 persons) or Salmonella Hartford (5 persons) have been reported from 10 states. The number of ill persons identified in each state is as follows: Arizona (1), California (2), Connecticut (2), Ohio (1), Florida (1), Massachusetts (1), Michigan (1), New York (4), Utah (1), and Wisconsin (3).

Among persons for whom information is available, dates that illnesses began range from January 21, 2014 to May 5, 2014. Ill persons range in age from 4 years to 81 years, with a median age of 51 years. Sixty-five percent of ill persons are female. Among 13 ill persons with available information, two (15%) report being hospitalized. No deaths have been reported.

Illnesses that occurred after May 16, 2014 might not yet be reported due to the time it takes between when a person becomes ill and when the illness is reported. This takes an average of 2 to 4 weeks. The recalled products containing organic sprouted chia powder have a long shelf-life and may still be in people’s homes, and illnesses may continue to be reported. Please see the Timeline for Reporting Cases of Salmonella Infection for more details.

Investigation Update

Epidemiologic and traceback findings have linked this outbreak of Salmonella infections to various brands of organic sprouted chia powder.

In interviews, ill persons are answering questions about foods eaten and other exposures in the week before becoming ill. To date, 12 (100%) of 12 persons interviewed reported eating chia seeds or powder, and 9 (75%) of 12 persons reported eating chia powder specifically.

On May 28, 2014, Navitas Naturals recalled products that contain organic sprouted chia powder due to possible Salmonella contamination. The recalled products include Navitas Naturals Organic Sprouted Chia Powder, Navitas Naturals Omega Blend Sprouted Smoothie Mix, and Williams-Sonoma Omega 3 Smoothie Mixer. The recalled products are available for purchase in many retail stores and online.

On May 30, 2014, the Canadian Food Inspection Agency (CFIA) notified consumers that Advantage Health Matters and Back 2 the Garden recalled various products containing sprouted chia seed powder due to possible Salmonella contamination. These products are sold under the brand names Organic Traditions and Back 2 the Garden and are available for purchase online by consumers in the United States.

Several samples of leftover organic sprouted chia powder from ill persons’ homes and unopened packages from retail locations are being tested for the presence of Salmonella bacteria. Results of this testing are pending and will be released when they become available.

CDC, state, local, and Canadian public health partners are continuing laboratory surveillance through PulseNet to identify additional ill persons and to interview ill persons about foods eaten before becoming ill. The U.S. Food and Drug Administration (FDA) is continuing to work closely with CDC and other partners in this investigation.

Initial Announcement

May 29, 2014

CDC is collaborating with public health officials in several states and the U.S. Food and Drug Administration (FDA) to investigate a multistate outbreak of Salmonella Newport infections. Results from this ongoing investigation indicate that organic sprouted chia powder distributed by Navitas Naturals of Novato, California is the likely source of this outbreak. Chia powder is made from ground dried chia seeds.

Public health investigators are using the PulseNet system to identify cases of illness that may be part of this outbreak. PulseNet, the national subtyping network of public health and food regulatory agency laboratories coordinated by CDC, obtains DNA "fingerprints" of Salmonella bacteria through diagnostic testing with pulsed-field gel electrophoresis, or PFGE, to identify cases of illness that may be part of this outbreak. This PFGE pattern has never been seen before in PulseNet.

A total of 12 ill persons infected with the outbreak strain of Salmonella Newport have been reported from 7 states. The number of ill persons identified in each state is as follows: Arizona (1), California (2), Connecticut (1), Massachusetts (1), New York (4), Utah (1), and Wisconsin (2).

Among persons for whom information is available, dates that illnesses began range from January 21, 2014 to May 5, 2014. Ill persons range in age from 4 years to 71 years, with a median age of 48 years. Fifty-eight percent of ill persons are female. Among ten ill persons with available information, one (10%) reports being hospitalized. No deaths have been reported.

This outbreak can be visually described with a chart showing the number of persons who became ill each day. This chart is called an epidemic curve or epi curve. Illnesses that occurred after May 8, 2014 might not yet be reported due to the time it takes between when a person becomes ill and when the illness is reported. This takes an average of 2 to 4 weeks. The recalled products containing organic sprouted chia powder have a long shelf-life and may still be in people’s homes, and illnesses may continue to be reported. Please see the Timeline for Reporting Cases of Salmonella Infection for more details.

Investigation of the Outbreak

Epidemiologic and traceback findings have linked this outbreak of Salmonella infections to organic sprouted chia powder distributed by Navitas Naturals.

In interviews, ill persons answered questions about food eaten and other exposures in the week before becoming ill. Seven (100%) of seven persons interviewed reported eating chia powder. Six (86%) of these seven people reported eating the Navitas Naturals organic sprouted chia powder.

On May 28, 2014, Navitas Naturals recalled products that contain organic sprouted chia powder due to possible Salmonella contamination. The recalled products include Navitas Naturals Organic Sprouted Chia Powder, Navitas Naturals Omega Blend Sprouted Smoothie Mix, and Williams-Sonoma Omega 3 Smoothie Mixer. The recalled products are available for purchase in many retail stores and online.

Several samples of leftover organic sprouted chia powder from ill persons’ homes and unopened packages from retail locations are being tested for the presence of Salmonella bacteria. Results of this testing will be released when they become available.

CDC and state and local public health partners are continuing laboratory surveillance through PulseNet to identify additional ill persons and to interview ill persons about foods eaten before becoming ill. The U.S. Food and Drug Administration (FDA) is continuing to work closely with CDC and state partners in this investigation.

 
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