In other words, fecal
samples testing negative which were then sent to university pathology labs showed intestinal parasites 85 % of the time.
If the «B»
sample tests negative, the athlete is presumed to be clean.
Their samples tested negative for any respiratory pathogens known at the time.
Only five of the 24 teams which had provided urine
samples tested negative for the presence of clenbuterol.
Small numbers of coccidia can be hard to detect, so just because a fecal
sample tests negative, this doesn't mean the pet isn't infected.
Not exact matches
Samples of infant formula feared to have been tampered with have
tested negative for pest control poison, sodium monofluoroacetate (1080), says New Zealand Police.
A
sample of 250 Leandra's Law convictions in Suffolk from January 2010 to May 2015 found that in 12 cases, the county's probation office did not notify Suffolk prosecutors in a «timely fashion» of «
negative activity» recorded on the interlock device, such as failed alcohol
tests or attempts to tamper with the device.
Lake Erie water
samples tested this week in Albany have come back
negative in Erie County for a harmful toxin caused by blue - green algae blooms.
We also sequenced 35
samples from suspected EVD cases that
tested negative for EBOV; genomic analysis identified other known pathogens, including Lassa virus, HIV - 1, enterovirus A, and malaria parasites (fig.
«And it also appears to be a relatively new threat to tigers since blood
samples from wild tigers prior to 2000
tested negative for antibodies to the virus.»
6 May Canada reports that the worker on the Alberta pig farm
tested negative for the virus, although the
sample may have been collected too late to detect it.
In Skuse's adaptation of Griess's two - step spot
test, the
sample from Hill's left hand was
negative.
They found that while bunch rot actually led to more positive aroma ratings due to the increased levels of fruity - and vanilla - like notes, powdery mildew decreased the level of pleasant notes in the wine, so that it received more
negative ratings from the
test panel, who found the infected wine to be less interesting than the healthy
sample.
The new
test agreed with conventional
testing in the other 5
samples that were
negative for HPV sequences.
Public health officials sprang into action and
tested further
samples from the area that triggered the system, but turned up
negative results.
Among the 268 respondents who returned their
samples, 99 % showed
negative results on an antibody
test which the authors had already proved gave very accurate results in Sierra Leone2.
Zika - positive and Zika -
negative samples were included as well as
samples that contained related viruses that cause, for example, dengue fever or yellow fever, in order to
test the specificity of the results.
Samples from four other suspected victims, who are still hospitalized but have not yet shown signs of hemorrhaging, have so far
tested negative for both Ebola and Marburg, says Ray Arthur, a medical officer in the WHO department of communicable diseases surveillance and response in Geneva.
Lead author Anne Madden cautions that just because
samples from parts of the West
tested negative for dust mites, it does not mean those areas are devoid of the critters.
The
test, known as T2MR, detected Borrelia in blood
samples from patients suspected of having Lyme disease that were
negative in other
tests.
PCR contamination occurring during nested PCR was evaluated by including at least one third as many water controls as
test samples in each PCR experiment and were always
negative.
To
test for the Zika virus, which is transmitted by mosquitos and is linked to birth defects, blood
samples have to be sent to a laboratory, where a positive or
negative result is generated in a couple days.
Precisely, quantitative RT - PCR
tested negative in trachea, brain and liver
samples, and
tested positive in all other organs.
All
samples were from patients whose lesions had previously
tested negative using the current CDC diagnostic assay in widespread use.
All
samples tested were
negative for measles virus [N and H genes], as well as for rubella and mumps:
Some mother - infant pairs had
negative test results for maternal, placental, or fetal or infant
samples but met the inclusion criteria based on at least 1
sample type.
Errors during collecting, storing or
testing urine
samples may cause false positive or
negative results [6].
Any of these
tests may be used for screening, with the awareness that false
negatives are common, in that other tissues may contain toxic levels not present in the
sample screened.
Again, if you're not ingesting gluten, there may not be as much damage to find, and
samples might
test negative for celiac disease, even though you actually have the condition.
A
sample of the shake
tested negative for peanut and treenut protein.
Using the state
test data and the full randomized
sample, the evaluators report
negative impacts for reading, math, and science scores at the end of third grade for children assigned to TVPK.
Canine guests must have had a fecal
sample processed within 6 months prior to their boarding reservation that resulted in
Negative findings, or be (or have been) actively treated based on the
test results.
This means that it's perfectly possible for a stool
sample to
test negative for whipworms even when a puppy has them.
David Dorman: We took four dogs with prior scent training, and we presented them with two urine
samples — one from a dog that had
tested positive for cancer, and one that had
tested negative for cancer.
Because intestinal parasites do not constantly reproduce eggs, it is possible to have a
negative stool
sample test, and there still be worms in the intestines.
Negative results may occur even when animals are infected depending on timing of sampling or excessive blood in stool, so an ill animal with negative test results may require further testing and care and should still be handled as though inf
Negative results may occur even when animals are infected depending on timing of
sampling or excessive blood in stool, so an ill animal with
negative test results may require further testing and care and should still be handled as though inf
negative test results may require further
testing and care and should still be handled as though infectious.
In my opinion, it would be wise for any dog that has symptoms compatible with heartworm disease and a
negative Snap / Witness
test and any dog that has an in - office positive
test and no symptoms or indications of heartworm disease to have a blood
sample sent off to a sophisticated central veterinary laboratory for confirmation before contemplating the best treatment plan.
Cats that have screened
negative for AD - PKD by gene testing (with the sample collected by a vet who also verifies the microchip number of the cat), can be listed on the iCatCare PKD Negative R
negative for AD - PKD by gene
testing (with the
sample collected by a vet who also verifies the microchip number of the cat), can be listed on the iCatCare PKD
Negative R
Negative Register.
Accuracy of antibody
test results vary widely based on the stage of larval development at the time of
sampling.12 For this reason, although a
negative antibody
test means an infection is less likely, it does not mean a cat is clear from infection.6, 9 Positive antibody
test results are even more troublesome to interpret, as a positive antibody
test merely indicates that a cat has been exposed to heartworm disease.
A study on raw diets showed that, despite the fact that 80 % of meat
samples were positive for Salmonella, 70 % of the dogs eating that meat
tested negative.
FACT: According to the CDC, laboratory results for tick - borne illness in people are often
negative on the first
sample and require a second
test 2 to 3 weeks later to confirm infection.
But antigen
negative cats may just not be shedding virus at the time the
test sample was collected.
They
tested 558
samples that had
tested negative for heartworm antigen on the point - of - care
test.
The
test enables veterinarians to confirm a dog's
negative status in approximately two minutes rather than sending
samples to a laboratory and waiting two or three days for results.
It is not necessary to heat - treat every
sample that
tests negative, but if heartworm infection is suspected and the
test result is
negative, HPT can help ensure an appropriate diagnosis.
The vet center said nine other
samples have
tested negative for Canine Influenza at their virology lab.
Most adults with
negative fecal
tests should also be dewormed because the Companion Animal Parasite Council says that about 75 % of pets with
negative fecal
tests have worms that are found when the
samples are
tested at universities and parasitology laboratories.
If a blood
sample is
tested, a false
negative may occur.
We
test at least one fecal
sample to look for intestinal parasites that are infectious to other dogs and people and also run a heartworm
test and start them on heartworm prevention if
negative, or treat for heartworm infection, if positive.
In addition, results from March 2012 toxic metal analyses, which included
tests for heavy metals, have again shown
samples of chicken jerky products to be
negative for toxic metals.