The images are taken at a magnification of x40 through a light microscope. Each division on the eye piece graticle equates to 2.5µm. The samples are derived from Macaca sylvanus and stained with iodine. (Image measurements: 37.5µm x 25µm)
Refer to Kooriyama et al, 2012. and compare your first image with Streptopharagus
The first one is a strongyloid egg and the second one is a classic strongyle egg. I don't know genus or species but it would be difficult to guess that just from the dimension of the ova,
I agree with Joseph, it definitely appears, at least from these images, to be strongyle.
Image no. 1 looks like Strongyloides sp. although the egg is a bit small! Probably realted to S. fuelleborni!
Image no. 2 is certainly strongyle-type egg and it would be extremely difficult to identify to the species or even to the genus level without performing faecal culture! i.e you develop the egg to the L3..
In my opinion,
first image looks to be a strongyloide egg
whereas the second image looks to be a typical strongyle egg as identified by Joseph Cyrus, Osama Mohammed and others.
Veterinary Parasitology
Reference Manual
by William J. Foreyt
Veterinary Clinical Parasitology
by Anne M. Zajac & Gary A. Conboy
These are very good reference manuals with images.
I guess any hookworm type looks like the 2nd egg (Strongy, Trichostrongy, Ankylostoma, Oesophagostoma etc)
Together with the others, I think the first image is a Strongyloid-like egg whereas the second image is a classic Strongyloides egg.
1st one may be Spiroidia egg or Strongyloides egg + the 2ed one (may be not egg) is not clear if it is Strongyle egg (fecal culture is needed) ............for the 1st image also you can check for some spiroidia eggs (Streptophrhgus, Gongylonema.....etc) Check soulsby or vet. parasitology
Left side is a strongyloides egg , the second one is not a egg.
The 2ed one may be not Egg, or may be reptured strongyle egg, for more confirmation another fecal sample is needed+ fecal culture and you can conduct some genetic characterization.
I would say the first egg is probably a Strongyloides spp. judging by the L1 larva in the egg. I would not venture a guess on the second egg - clearer pictures are needed.
I think is Strongyloides egg, and I have seen in the fece of Macaca also.
You need to use antihelminthic chemicals to obtain adults (males and females). You cannot idenify roundworms on juveniles, it is difficult even with molecular technology.
The clearly developed egg is most probably Strongyloides egg. Stool cultivation can be conclusive. The second object is not an egg..
Dear friend:
I think this image is very similar to Entrobious vermicularis or Oxyour emberionated egg a nematod from oxyouridae family wich is common parasite of larg intestin of primates ( human or other primates like monkey)
Hi. In my opinion the left one is a strongyle egg that can be identified to species after larval culture. The second one is not an egg I agree. Cheers!
If the egg on the left have an operculum maybe it's an Oxyuridae, but it isn't clear, if it not have an operculum maybe it is a Rhabditida egg (e.g. Strongyloides) or an Spirurida egg because it's embryonated, the one on the rigth is not clear and I think it isn't an egg's parasite.
Regards
I'm not sure ... the yellowish-brown one seems to be an acanthocephalan egg, but it is too small ...
There is only one egg in the image; that in the right is an artifact. The egg is embryonated and appears to have a thick wall (the focus is not so clear) then, it is an spirurid egg. The suggestion of Streptopharagus pigmentatus a parasite of monkeys in Asia (Machida et al., 1978) is the most probable. Strongyloides has a thin wall and is more translucid, but the effect of iodine could mask this.
There is only on egg in this image. the right one in not egg. i think it's not strongyloides egg. you can use book in titile "Parasitic Infections of Domestic Animals" to find your egg.
The egg on left is either Strongyloides or an Oxyuris type egg. Looks like there is operculum. If the sample from which this egg came sat out for awhile, it may not be optimal for evaluation. Or the suggestions above would help (larval development). The other item in image is not an egg (I also agree with others).
Hi, This nematode egg strongly resembles Strongyloides spp. eggs in appearance.
I think the object on the left of your picture is a Strongyloides egg, while the other image seems to be an artifact.
Looks like Strongyloides on left. Right hand side not certain this is anything other than debris.
Send your pictures to the Institute of Veterinary Parasitology in Munic; i am sure they will help you : email: [email protected] ; best wishes
As I mentioned above, I guess it is may be Strongyloides, also you have check for spirurid egg, try to use a good manual
I doubt its Strongyloides. I am more inclined to say its Oxyuris sp. based on its thicker wall and operculum.
It looks to me like a Trichostrongylid: I know this is a big sub-family, and this diagnosis may not be very helpful, but the emerging larva suggests Tricostrongylus spp.
The egg is from a spirurid parasite. It looks very similar to a Physaloptera egg, although there may be other spirurid parasites in the host species.
All, Thank you so very much for taking the time to respond. Unfortunately culture is not an option so i have to go with comparative reference images and general opinion.
Some may not have seen, but the first comment below the question is a second image, further opinion on this one will be much appreciated, having addressed some references i am inclined to believe it is (as some have mentioned) Oesophagostomum spp. I will look further into the first image, guided by all of your suggestions! Thank you once again.
In relation to the second image, it is possible that the egg is Oesophagostomum. However, analysis of other eggs is necessary. Considere also other strongylids, perhaps hookworms... Unfortunately for you, preparing cultures would in fact be ideal.
I considered the possibility of invasion nematodes from genus Physaloptera
Th e first image appear more like a spirurid egg. Second one is not clear, but would be only a cooperiid egg. This, of course can be confirmed only if a clear image is given.
Second egg looks like strongylus type ... and not possible to go further.
In my opinion its oxyuris vermicularis egg.some rarely seen in stool and similar to strongyloides egg
Sorry, I don't see the second image, can you upload it apart or in other topic?
Hi Alfred
Send me your email I email you back with a images collection fro eggs and larvaes
Greetings
Eduardo
Hello all, thank you again for your time and thoughts.
Hi Alejandro, I will do so with comparative photos i have taken in other samples.
Hi Eduardo, thank you I will do so immediately
Hello again, please see my next question, your contributions will be much appreciated, thank you
https://www.researchgate.net/post/Can_anyone_assist_me_with_the_identification_of_these_helminth_eggs
Strait, K., Else, J.G., & Eberhard, M.L. (2012). Parasitic diseases of nonhuman primates. In C. Abee, K. Mansfield, S. Tardif, & T. Morris (Eds.), Nonhuman primates in biomedical research volume 2: Diseases (pp.197-297). Oxford: Academic Press.
The photograph shows a thick shelled larvated egg with a prominence at one end. This type of egg belongs to spirurids. other one seems to be a pseudoparasite.
In the clinical Parasitology, we utilize the CDC website. You may contact dpd.cdc.org and follow the link to upload your image. They will help you identify. It's free of charge. Good image refernce are found in dpdx.org - the website maintained by the Parasitology Dept of CDC. Goodluck!
It seems to be a fluke egg. Operculum present at one end and egg is packed with germ cells.
ok. It seems to be fluk egg because of opercule and egg mass
The egg is more similar to enterobius eggs and i think that right bulk is artifact
The one on the right looks like Ascaris sp. The one on the left is a trematode (operculate), but I cannot tell you more.
It seen Oxiuridae. Important know de feacal origin, especie of host.
With this site and morphology is a Spiruridae. I dont know the genus of spirurids of Macaca.
The Ova on the left side looks like the ova of Enterobius Vermicularis and the one on the right side looks like Paragonimus Westermani whic is often oval and slightly flattened on the one side with an obvious rim like a flat cap.It has distinct thickening at opposite end to operculum and golden brown colour.
The left is a spirurid, the right I cannot tell acording quality of photo
There are two structures in the photograph. The egg on the left is definitely a Spirurid egg (there are at least 5 different genera of Spirurids in African non-human primates, although Streptopharagus would also be my first guess). As to Macaca sylvanus, I have limited knowledge about which type of macacque this is, so I wouldn't hazard a guess, but from what I've seen of non-human primates, most seem to have common genera despite being widely separated (in Japan, for instance, studies have shown common genera including Trichuris, Enterobius, Strongyloides and Streptopharagus). The egg on the left is not an Enterobius egg. I don't think the structure on the right is an Eneterobius egg, either, although it might possibly be a Stronglyoides egg, either broken or one from which the larva was emerging before (I assuming) the fecal sample was obtained and/or fixed. JP Caruso, MS, PhD, FAU, Boca Raton FL (MS in Parasitology, UWyoming, 1980; PhD in Veterinary Parasitology, U Georgia, 1980; Postdoctoral Associate in Parasitology and Immunology, Iowa State University, 1984-1987).
I'm very sorry, but the egg most certainly isn't a Strongylus egg, since 1) it has a thick, brown shell (Strongylus eggs have clear shells, often with significant space between the embryonic cellular mass and the shell, whcih is completely lacking here); 2) it's completely embryonated, with a developed larval nematode inside the egg, indicating the egg with larvae inside is the infective form (the infective stage in Strongylus is a 3rd-stage larval form); and 3) Strongylus is a genus of parasite associated with grazing herbivores (Equids and some ruminants and reptiles), not primates like Macacques. It's also not a Paragonimus egg, since there's a larval nematode inside it and it has no operculum. I've been examining veterinary and human parasite eggs since the late 1970s and this egg is definitely a nematode and almost surely a Spirurid egg.
I reviewed recently a handbook entitled: Handbook for Identification and Counting of Parasitc Eggs in Urban Wastewater. Try to find it. It is very good for beginners.
I don´t know this egg, but defintely is not a Strongylus egg. The Strongylus eggs of humans (S. stercoralis, soo difficult to see in fecal samples) or animals I have seen are very clear and lack color. Enterobius egg is clear too
which host ????, you can not complete identification without adult stage .
link below
http://www.cdc.gov/dpdx/diagnosticProcedures/stool/morphcomp.html
For general information, humans don't harbor Strongylus spp. Also, Strongyloides is not a Strongylus spp! Strongylus spp. infect large grazing animals, mainly Equidae and were a scourge for many years in the bloodstock and working horse populations in many countries.
This is a spirurid egg. Since it was diagnosed from a monkey it belongs to genus Streptopharagus.
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