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PubMed1982

Development of a marmoset colony in Australia.

A breeding nucleus of 15 pairs of Callithrix jacchus jacchus was imported from an established colony in the United Kingdom in 1978, and these have now multiplied to 137 animals. Good reproductive efficiency and growth rates have occurred in this colony, with minimal problems from diseases of nutritional or infectious origin. One episode of cessation of breeding and abortions was attributed to excessive noise and disturbance of the normal routine.

Animal Husbandry↗
PubMed1980

Infectious bovine keratoconjunctivitis: effects of vaccination on Moraxella bovis carrier state in cattle.

A study was conducted to determine whether vaccination of cattle while they were undergoing an acute episode of infectious bovine keratoconjunctivitis (IBK), would cause vaccinated cattle to abort Moraxella bovis infection sooner than nonvaccinated cattle. Fourteen calves were allotted into two groups of seven calves each, and the eyes of each calf were exposed to a virulent culture of M bovis. Twenty days after calves were infected and showing signs of IBK, seven calves were vaccinated with M bovis pilus vaccine made from the exposure strain. Ocular and nasal discharges were collected and examined for M bovis for 64 days. Most calves developed signs of IBK after exposure and all but one calf (nonvaccinated) developed ocular infection with M bovis. The mean number of days (33 and 33.3, respectively) of ocular infection was not significantly (P = 0.05) different in the vaccinated calves than in the nonvaccinated calves. The eyes of the calf that did not become infected with M bovis were infected with nearly a pure culture of Escherichia coli. This calf failed to develop ocular infection, but had M bovis in its nasal discharge throughout the study (64 days). Moraxella bovis was isolated from the nasal discharge of other calves only when there were concurrent ocular infections.

Animals↗
PubMed1993

[Foal diseases and foal loss].

An investigation was carried out upon occurrence and course of infectious and non infectious diseases as well as the mortality in foals born and raised at the State Stud Marbach/Lauter between 1982 and 1991. The foals have been investigated from birth to weaning, they consisted of 177 Thoroughbred Arabians and 285 German Warmblood foals (total 462 foals). The diseases were divided into pre-, peri- and postnatal according to their known or assumed cause and onset. There was a preponderance of prenatal diseases (11.25%) whereas the perinatal rate was 1.30% and the postnatal rate of diseases was 8.66%. The rate of infectious diseases increased from the pre- to the postnatal period of life. A comparison between the two breeds showed that 9% of the Arabian foals suffered from infectious diseases whereas only 4.9% of the Warmblood foals were similarly affected. This is probably linked to the lower level of colostral immunoglobulins in the Arab herd, as previously shown by us. The measurement of mare colostral and foal serum IgG as well as the paramunisation of neonatal and weaned foals are important factors in the prevention of infectious diseases.

Abortion, Veterinary↗
PubMed1998

Pregnancy in HIV-infected women. Counseling and care--12 years' experiences and results.

BACKGROUND: A specialized antenatal care unit was set up for counseling and care of HIV-infected pregnant women. The team consisted of gynecologists, a midwife, a social worker and pediatricians. METHODS: The women were referred from departments of infectious diseases, venereology or institutions for drug addicts, antenatal care units and abortion clinics, or applied themselves. Women identified in the pregnancy HIV screening program were informed primarily by the team. The women were counseled along with their partners and cared for during abortion or the antenatal period, delivery and post partum. Contraceptive services were offered and psychosocial support was given. RESULTS: Between April 1985 and March 1997, 95 HIV-infected women with 122 pregnancies attended. Twenty-one per cent were or had been drug users, 2% had been infected by transfused blood and 77% were classified as having been sexually infected, two thirds of whom were Africans. The mean age was 27.8 years. In 54 of 93 pregnancies (58%) in which the woman could make an informed decision, she elected abortion -- in 37 cases for HIV related reasons. Significantly more women with an uninfected steady partner, compared to women without a steady partner, chose to continue the pregnancy, as did women in a relatively stable social situation. Of the partners, 68 were HIV-negative, 36 HIV-positive and 18 not tested. No severe HIV-related complications occurred during pregnancy. Seven of 40 (18%) children with a known infection status were infected. During the course of follow-up, nine mothers, two fathers and three children have died. Seventeen children were at risk of being orphaned, and another five were placed in foster care. CONCLUSION: Although it is possible to reduce mother-to-infant transmission by zidovudine therapy, the negative consequences of HIV and childbearing are still substantial. Therefore HIV screening during pregnancy and pre-pregnancy counseling are important issues for the health care system.

Abortion, Induced↗
PubMed1982

[Early complications and effectiveness of abortion induction with PG F2 alpha].

Early morbidity was studied in 466 primigravidae, following induced abortion by intermittent intra-uterine extra-amniotic application of PG F2 alpha. The rate of inflammatory complications was reduced from 8.2 to 3.4 per cent by reduced indwelling of the intra-uterine application probe. Correlations were found to exist also between time and method to complete interruption and infectious morbidity. Variation in application time depressed the number of incomplete abortions and called more often for additional mechanical dilatation of the cervix. The modified method proved to be sufficiently effective, the more as cost, need for personnel, and inflammatory morbidity were favourably affected.

Abortifacient Agents↗
PubMed1977

[Immunoprophylaxis of infectious bovine rhinotracheitis].

The live attenuated vaccine against infectious rhinotracheitis (LAV), the live trivaccine against infectious rhinotracheitis (LT), the concentrated etanolsaponin vaccine against infectious rhinotracheitis (CESV) and the ethanol-saponin vaccine against infectious rhinotracheitis (ESV) can all be used as immunoprophylactic means in the control of infectious rhinotracheitis in cattle. The first two live vaccines are applied to calves in infection foci, and the two inactivated vaccines are used with cows. The comparative testing of CESV and ESV in experimental conditions on calves has shown that the first possesses higher immunogenicity--used in a twice lower dose it produces several times higher level of the neutralizing antibodies against the infectious rhinotracheitis virus. The use of LAV and LT in the practice under the conditions of established infections of infectious rhinotracheitis in calves has given good results. The immunization of calves at the immediate menace of this infection has lowered the morbidity rate, and death cases were no longer observed. The use of CESV and ESV with pregnant cows on a prophylactic basis against infectious rhinotracheitis has also given good results manifested in the full suppression of abortions.

Animals↗
PubMed2005

Ethics and infectious disease.

Bioethics apparently suffers from a misdistribution of research resources analogous to the '10/90' divide in medical research. Though infectious disease should be recognized as a topic of primary importance for bioethics, the general topic of infectious disease has received relatively little attention from the discipline of bioethics in comparison with things like abortion, euthanasia, genetics, cloning, stem cell research, and so on. The fact that the historical and potential future consequences of infectious diseases are almost unrivalled is one reason that the topic of infectious disease warrants more attention from bioethicists. The 'Black Death' eliminated one third of the European population during the 14th Century; the 1989 flu killed between 20 and 100 million people; and, in the 20th Century smallpox killed perhaps three times more people than all the wars of that period. In the contemporary world, epidemics (AIDS, multi-drug resistant turberculosis, and newly emerging infectious diseases such as SARS) continue to have dramatic consequences. A second reason why the topic of infectious disease deserves further attention is that it raises difficult ethical questions of its own. While infected individuals can threaten the health of other individuals and society as a whole, for example, public health care measures such as surveillance, isolation, and quarantine can require the infringement of widely accepted basic human rights and liberties. An important and difficult ethical question asks how to strike a balance between the utilitarian aim of promoting public health, on the one hand, and libertarian aims of protecting privacy and freedom of movement, on the other, in contexts involving diseases that are--to varying degrees--contagious, deadly, or otherwise dangerous. Third, since their burden is most heavily shouldered by the poor (in developing countries), infectious diseases involve issues of justice--which should be a central concern of ethics. I conclude by providing sociological and historical explanations of why the topic of infectious disease has not already received more attention from bioethicists.

Acquired Immunodeficiency Syndrome↗
PubMed1995

A randomized trial of prophylactic doxycycline for curettage in incomplete abortion.

OBJECTIVE: To determine whether prophylactic doxycycline at suction curettage for incomplete abortion decreases the rate of postoperative pelvic infection. METHODS: We randomized 240 patients to receive intravenous doxycycline or placebo at curettage. Cervical specimens for gonorrhea and chlamydia were obtained preoperatively. Two weeks post-procedure, we evaluated all patients for infectious morbidity and repeated gonorrhea and chlamydia cultures. Statistical analysis used Mann-Whitney U test, McNemar test, or Fisher exact test, as appropriate. RESULTS: There were no statistically significant differences in age, parity, gestational age, history of sexually transmitted disease, pelvic inflammatory disease, or multiple sex partners between the doxycycline and placebo groups. Preoperative gonorrhea or chlamydia isolates were positive in five (4.2%) and six (5%) of 120 doxycycline patients and four (3.3%) and eight (6.6%) of 120 controls (not significant). All preoperative gonorrhea isolates remained positive postoperatively. Seven (5.8%) controls had positive postoperative chlamydia isolates, as did one (0.8%) in the doxycycline group (P = .06). We diagnosed eight (6.6%) of 120 doxycycline patients and seven (5.8%) of 120 controls with infectious morbidity (not significant). CONCLUSION: In our population of patients with incomplete abortion, the prevalence of gonorrhea and chlamydia was low, and prophylactic doxycycline did not decrease the rate of postoperative febrile morbidity.

Abortion, Incomplete↗
PubMed1984

A multivariate analysis of the risk indicators of reduction limb defects.

In order to evaluate associations of various selected risk indicators with reduction limb defects, data on 453 cases of reduction limb defects and their time-area matched pair controls from the Finnish Registry of Congenital Malformations was studied. A multivariate analysis of the earlier reported associations was performed. This analysis showed that the following risk indicators were associated with the defects: high birth order, threatened abortion, low placental weight, low birth weight, previous malformations in the family, influenza during early pregnancy, other infectious diseases, and mother's alcohol consumption during pregnancy.

Abortion, Threatened↗
PubMed1989

Antibodies of aborted bovine fetuses respond to placental structures.

IgG isolated from aborted bovine fetuses was found to be directed not only to a diaplacental infectious agent but, in half of the cases, also to the site of infection, i.e. the placental tissue. The techniques used were immunohistochemistry and agarose immunoelectrophoresis. These findings suggest a hitherto unrecognized pathological mechanism of abortion.

Abortion, Veterinary↗
PubMed1990

A field investigation of causes of abortion in dairy cattle.

Cases of abortion on dairy farms on the Lancashire/Cumbria border were investigated by means of a systematic diagnostic procedure, using the facilities of a veterinary practice's laboratory, and the Ministry of Agriculture, Fisheries and Food veterinary investigation centre. Among approximately 3600 animals, 149 abortions were investigated on 54 farms in two years, an annual abortion rate of 2 per cent. A diagnosis was made in 34 per cent of the cases, based on a pathological examination of aborted material and bacteriological and serological findings. The most common pathogens associated with abortion were bovine viral diarrhoea virus (39 cases), bacterial or fungal infections (20 cases), infectious bovine rhinotracheitis virus (19 cases), and Leptospira hardjo (18 cases), either as single or multiple infections.

Abortion, Veterinary↗
PubMed2001

Display of complete life cycle of human papillomavirus type 16 in cultured placental trophoblasts.

Human papillomavirus (HPV) infection is threefold more prevalent in spontaneous abortion specimens compared to elective abortions preferentially targeting the placental trophoblasts in these specimens. Here by using infectious ceplar and Southern blot analysis, we demonstrate that the transfected HPV-16 genome de novo replicates in 3A trophoblasts in culture. Peak DNA replication occurred 9-24 days posttransfection, showing classic DNA forms I, II, and III and an 8-kb monomer band upon DpnI/BamHI digestion. Reverse transcription-polymerase chain reaction (RT-PCR) analysis of mRNA expression revealed that E6 and E2 were significantly expressed by day 9, coinciding with HPV-16 DNA replication. However, significant L1 expression was delayed until day 18. L1 protein expression on day 18, but not day 9, was also confirmed by Western blot analysis. The production of HPV-16 virions was demonstrated by three techniques: the appearance of HPV-16 infectious units coinciding with L1 expression, the neutralization of these infectious units with known neutralizing anti-HPV-16 antibodies, and the appearance of spliced E1-E4 and E6-E7 transcripts (RT-PCR) in normal keratinocyte rafts infected with these trophoblast-produced HPV-16 infectious units. These data suggest that HPV-16 is carrying out its complete life cycle in trophoblasts. Previously, HPVs were known to productively replicate only in differentiating keratinocytes of skin. These findings expand HPV biology, support the hypothesis of a possible link between HPV and some spontaneous abortions, and present a new technology for studying HPV.

Cells, Cultured↗