Heartworms In Iowa

Canine heartworm infection, caused by Dirofilaria immitis, has made an alarming incursion into Iowa during the past 4 to 5 years. Review of clinical records at Iowa State University for the past 5 years show 46 cases of heartworm infection. Now it has gotten to the stage where veterinarians in some areas of Iowa are regularly encountering the disease and routinely check for its presence

Observations on Myiasis Caused by Wohlfahrtia (Skin Bots)

During the fly season, myiasis, or the presence of dipterid larvae in tissues, is a common and troublesome affliction of mammals. One of the most commonly encountered forms of myiasis is cutaneous myiasis, where the larvae occur in the skin. Many genera of flies are associated with cutaneous myasis., including the awesome primary screwworm (Callitroga hominivorax), various blow flies, flesh flies (Sarcophaga spp.), and skin bots (Cuterebra spp., Wohlfahrtia spp.)

Parasites in Domestic Animals in Iowa

Because the profit margin in the livestock industry is narrowing year by year, the importance of subclinical disease ever increases. Of major importance in the realm of subclinical disease is parasitism. Although parasites are capable of causing severe morbidity and morality, the usual situation seen from day to day is the insidious, nonspectacular stress placed on animals by subclinical infections by various parasites

Identifying Nematode Larvae in Feces of Dogs and Cats

Identifying larvae that may be found in the feces of dogs and cats offers a diagnostic problem to the veterinarian. Some larvae may be from free-living nematodes instead of those from parasites, and some larvae may actually be plant structures. The purpose of this article is to discuss the recognition and identification of nematode larvae found in fecal specimens from dogs and cats

Anaplasmosis in Cattle

On September 6, 1975, one cow in a herd of 36 near Aplington, Iowa, was found by the owner as being slow and weak. Dr. Eldon Uhlenhopp was called to examine the cow. The cow\u27s mucous membranes were found to be very pale and icteric. She also had a temperature of 100F. Hemoglobin was determined to be 3 gm %. A differential diagnosis of anaplasmosis or leptospirosis was made

Eperythrozoonosis in 4-week-old Pigs

Eperythrozoon suis is considered to be the major cause of icteroanemia in swine. Knowledge concerning the mode of transmission of eperythrozoonosis is incomplete. Because most cases of eperythrozoonosis occur during the warm months of the year, it has been assumed that dissemination of the blood parasite could be most easily accomplished by bloodsucking arthropod vectors

Identification of inclusions in lung tissue with a Raman microprobe

Inhaled particles smaller than 4 μm can cause damage to lung tissue, a disease called silicosis. We present an investigation on the use of a Raman microspectrometer for the identification of inclusions in lung tissue. We measured Raman spectra of such inclusions in lung tissue of a patient whose probable cause of death was silicosis. Most of the inclusions we could identify were calcite particles

Origins of the extragalactic background at 1mm from a combined analysis of the AzTEC and MAMBO data in GOODS-N

We present a study of the cosmic infrared background, which is a measure of the dust obscured activity in all galaxies in the Universe. We venture to isolate the galaxies responsible for the background at 1mm; with spectroscopic and photometric redshifts we constrain the redshift distribution of these galaxies. We create a deep 1.16mm map (sigma ~ 0.5mJy) by combining the AzTEC 1.1mm and MAMBO 1.2mm datasets in GOODS-N. This combined map contains 41 secure detections, 13 of which are new. By averaging the 1.16mm flux densities of individually undetected galaxies with 24um flux densities > 25uJy, we resolve 31--45 per cent of the 1.16mm background. Repeating our analysis on the SCUBA 850um map, we resolve a higher percentage (40--64 per cent) of the 850um background. A majority of the background resolved (attributed to individual galaxies) at both wavelengths comes from galaxies at z > 1.3. If the ratio of the resolved submillimeter to millimeter background is applied to a reasonable scenario for the origins of the unresolved submillimeter background, 60--88 per cent of the total 1.16mm background comes from galaxies at z > 1.3.Comment: 12 pages, 10 figures. Accepted by MNRAS. The combined map is publicly available at http://www.astro.umass.edu/~pope/goodsn_mm

Surface plasmon resonance immunosensors: sensitivity considerations

Some aspects of improving surface plasmon resonance response in immunosensing applications are considered. Both from calculations and experiments, it was found that maximum sensitivity is obtained for a silver layer about 55 nm thick in direct contact with the species to be quantified. Application of an intermediate layer with high permittivity can be useful in suppressing background responses. Experimentally, a protein surface-coverage fraction of ca. 0.1 could be measured, corresponding to ca. 10−10 mol1−1 antibody

Paragonimiasis In Iowa

The presence of the lung fluke, Paragonimus kelliocotti, was first recorded in the United States in a cat in 1894. It was first recognized in domesticated animals in Iowa in a dog from Blackhawk County in 1948. Subsequently, paragonimiasis has been diagnosed in dogs from Polk and Dallas counties. An additional case was found in a dog from an unrecorded county. Also, one cat from Story County has been found to harbor P. kellicotti