Chlamydiosis-epidemiology, Biology

Assignment Help:

Epidemiology


The organism does not appear to be very host or tissue specific and can infect naturally a large number of avian and mammalian species. Chlamydiosis has been recorded in Germany, United States, Australia, Canada, France, Austria, Spain, England, Italy, Bulgaria, Romania, New Zealand, and Japan etc. The disease was identified in the country during 1973 from the cases of abortion from sheep and goats in India. Later on various workers also reported various disease manifestations in other animals from the country. The incidence has been recorded ranging from 20-70% in sheep and goats, which became as low as 2-15% in succeeding years. No significant role has been reported in experimentally induced infection in sheep and goats. Higher incidence of abortions in both primapara and multipara sheep and goats has been recorded. The perinatal mortalities due to intra- uterine infection have been described to vary from 5-50% both in lambs and kids. It has also been observed that an overall proportional foetal and neonatal mortality rates in lambs and kids during hebdomadal period (0-1 week) varied in lambs and kids whereas mortalities in post-hebdomadal period (1-4  weeks) declined both in lambs and kids. Most of the mortalities recorded during 0-1 week were within 72 h after the birth, which was attributed to the intra-uterine infection and also the immuno-suppression and/or deficiency of immunoglobulin in milk which might have contributed in interfering with the protection mechanisms during the neonatal period.


Related Discussions:- Chlamydiosis-epidemiology

Gene pool, Natural selection can therefore mean differential reproduction a...

Natural selection can therefore mean differential reproduction among members of the sarne gene pool. We earlier said that selection would promote those alleles that give rise to ph

Explain the role of the carbon atom, Each of the properties that follow is ...

Each of the properties that follow is characteristic of the carbon atom. In each case, indicate how the property contributes to the role of the carbon atom as the most important at

Sexual reproduction, SEXUA L REPRODUCTION 1 .       Amphigony       ...

SEXUA L REPRODUCTION 1 .       Amphigony        -          Zygote is formed. (i) Syngamy Fusion of gametes. (a) Endogamy - It involves self fertilisation. e.g.

Embryonic development, Embryonic Development The embryonic stage exte...

Embryonic Development The embryonic stage extends from the second week by the 8th week and is charactrised by formation of placenta, the development of internal organs and ap

Emboly movement - involution, Emboly Movement - Involution It den...

Emboly Movement - Involution It denotes turning in or rolling over. Involution of mesodermal blastomeres has been observed in Amphioxus, reptiles, monotremes, amphibians,

Zoology, anthropoda locomotion

anthropoda locomotion

Chordates and non chordates, give an account of ciliary and flagellar move...

give an account of ciliary and flagellar movement in protozoa

How does the breathing process correct acidosis, Q. How does the breathing ...

Q. How does the breathing process correct acidosis? The increment of the respiratory frequency makes the body eliminate more carbon dioxide and to shift the equilibrium of the

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd