Biomaterial Database

Bovine leptospirosis: experimental infection of pregnant heifers with a strain belonging to the Hebdomadis serogroup. 1977

W A Ellis, and S W Michna

Twenty pregnant heifers were inoculated with a leptospire of the Hebdomadis serogroup. Leptospiraemia was accompanied by pyrexia which lasted from one to five days. Sixteen animals had relapses of fever. One of these aborted and two produced weak calves, one of which was premature. In the heifers, leptospires localised in the placentae, where they were demonstrable for 14-60 days after inoculation, and in the renal tubules for as long as 174 days. They were also demonstrated in liver, kidney and lung from the aborted fetus. Antibodies were detected in susceptible heifers six days after inoculation and maximum titres of up to 1:100,000 developed between 11 and 21 days. A titre of 1:10 was demonstrated in the serum of a premature live calf. These findings indicated that leptospires of the Hebdomadis group were capable of causing abortion in cattle.

UI	MeSH Term	Description	Entries
D007668	Kidney	Body organ that filters blood for the secretion of URINE and that regulates ion concentrations.	Kidneys
D007919	Leptospira	A genus of aerobic, helical spirochetes, some species of which are pathogenic, others free-living or saprophytic.
D007922	Leptospirosis	Infections with bacteria of the genus LEPTOSPIRA.	Cane-Cutter Fever,Canicola Fever,Leptospira Canicola Infection,Leptospira Infection,Leptospirosis Canicola,Mud Fever,Rice-Field Fever,Stuttgart Disease,Swineherd's Disease,Cane Cutter Fever,Fever, Canicola,Fever, Mud,Fever, Rice-Field,Fevers, Cane-Cutter,Infection, Leptospira,Infection, Leptospira Canicola,Infections, Leptospira,Infections, Leptospira Canicola,Leptospira Canicola Infections,Leptospira Infections,Leptospiroses,Leptospirosis Canicolas,Rice Field Fever,Swineherd's Diseases
D010920	Placenta	A highly vascularized mammalian fetal-maternal organ and major site of transport of oxygen, nutrients, and fetal waste products. It includes a fetal portion (CHORIONIC VILLI) derived from TROPHOBLASTS and a maternal portion (DECIDUA) derived from the uterine ENDOMETRIUM. The placenta produces an array of steroid, protein and peptide hormones (PLACENTAL HORMONES).	Placentoma, Normal,Placentome,Placentas,Placentomes
D011247	Pregnancy	The status during which female mammals carry their developing young (EMBRYOS or FETUSES) in utero before birth, beginning from FERTILIZATION to BIRTH.	Gestation,Pregnancies
D011248	Pregnancy Complications	Conditions or pathological processes associated with pregnancy. They can occur during or after pregnancy, and range from minor discomforts to serious diseases that require medical interventions. They include diseases in pregnant females, and pregnancies in females with diseases.	Adverse Birth Outcomes,Complications, Pregnancy,Adverse Birth Outcome,Birth Outcome, Adverse,Complication, Pregnancy,Outcome, Adverse Birth,Pregnancy Complication
D011251	Pregnancy Complications, Infectious	The co-occurrence of pregnancy and an INFECTION. The infection may precede or follow FERTILIZATION.	Complications, Infectious Pregnancy,Infectious Pregnancy Complications,Maternal Sepsis,Pregnancy, Infectious Complications,Sepsis during Pregnancy,Sepsis in Pregnancy,Infectious Pregnancy Complication,Pregnancy Complication, Infectious,Sepsis in Pregnancies,Sepsis, Maternal
D001769	Blood	The body fluid that circulates in the vascular system (BLOOD VESSELS). Whole blood includes PLASMA and BLOOD CELLS.
D002417	Cattle	Domesticated bovine animals of the genus Bos, usually kept on a farm or ranch and used for the production of meat or dairy products or for heavy labor.	Beef Cow,Bos grunniens,Bos indicus,Bos indicus Cattle,Bos taurus,Cow,Cow, Domestic,Dairy Cow,Holstein Cow,Indicine Cattle,Taurine Cattle,Taurus Cattle,Yak,Zebu,Beef Cows,Bos indicus Cattles,Cattle, Bos indicus,Cattle, Indicine,Cattle, Taurine,Cattle, Taurus,Cattles, Bos indicus,Cattles, Indicine,Cattles, Taurine,Cattles, Taurus,Cow, Beef,Cow, Dairy,Cow, Holstein,Cows,Dairy Cows,Domestic Cow,Domestic Cows,Indicine Cattles,Taurine Cattles,Taurus Cattles,Yaks,Zebus
D002418	Cattle Diseases	Diseases of domestic cattle of the genus Bos. It includes diseases of cows, yaks, and zebus.	Bovine Diseases,Bovine Disease,Cattle Disease,Disease, Bovine,Disease, Cattle,Diseases, Bovine,Diseases, Cattle