Tuesday, September 21, 2010

Anthrax Update on 30 September 2010

Number of Cutaneous Anthrax cases from 18 August to 30 September 2010:
Districts                        Upazila                       Number                 In last 24 hours (30/09/2010)

Pabna                                                                  68                                        0                                           
                                     
                                      Bera                               11                                         
                                      Santhia                           35                                        
                                      Faridpur                         22                                         

Sirajganj                                                             218                                        0                             
                                      
                                      Shahjadpur                     56                                                                 
                                      Belkuchi                          54
                                      Kamarkhanda                98                                        
                                      Ullapara                          10

Kushtia                                                                 49                                        0                             
                                     
                                      Daulotpur                        46
                                      Bheramara                     03                                                                                                            

Tangail                                                                  26                                       0                               
                                     
                                      Ghatail                             14
                                      Gopalpur                         12                       

Meherpur                                                               82                                      0                               
                                     
                                      Gangni                             81                                                                           
                                      Mujibnagar                      01

Manikganj                                                             08                                        0                               
                                      Shaturia                          08

Shatkhira                                                              01                                        0                               

                                      Sadar                              01                                      

Lalmonirhat                                                         107                                        0                               
                                  
                                      Sadar                             78                                         
                                      Aditmari                         29

Rajshahi                                                               08                                         0                              

                                      Charghat                        07
                                      Tanore                            01*                                        

Narayangonj                                                        12                                         0                              

                                      Araihajar                        12

Laxmipur                                                             25                                          0                              
                                     
                                     Kamalnagar                   25

Chittagong                                                          01                                          0                             

                                     City                                 01                                                 

Total                                                                                                                                                    
                                                                           605          Last 24 hours        0

* Imported from Sirajganj

Last day it was 605
Read More on Anthrax:

Epidemiology

Anthrax is commonly known as ‘Tarka disease’ among the villagers and caused by Bacillus anthracis, a bacterium that can form spores. Spores allow it to survive in the soil for long periods of time. 
Anthrax is primarily a disease of herbivorous mammals such as cattle, sheep, goats and buffaloes, which can ingest anthrax spores while grazing. Humans generally acquire the disease directly or indirectly from infected animals, or occupational exposure to infected or contaminated animal products. Control in livestock is therefore the key to reduced incidence. There are no documented cases of person to person transmission. The disease's impact on animal and human health can be devastating.

The disease exists in animals and humans in most countries of Africa and Asia, in several southern European countries, in the Americas, and certain areas of Australia. But It was just 9 years back. After 9/11, Anthrax was a serious issue in the western world. Still today, Anthrax is of serious interest due to the world terrorism issues.  As an infective agent, it is a concern because it forms very resistant spores that can be transported easily. At present, it has come back in Bangladesh and infecting human and cattle.

Disease outbreaks in animals also occur sporadically in other countries. Prevalence of anthrax in Bangladesh was not well documented, however, since August 2009 IEDCR has investigated 14 outbreaks of cutaneous anthrax in three districts of Bangladesh (Pabna, Sirajganj and Tangail). Recently, more and more outbreaks are being reported.

Anthrax in human

There are 3 types of anthrax in humans: 
cutaneous anthrax, 
gastrointestinal tract anthrax, and 
pulmonary (inhalation) anthrax. 

The incubation period for the disease is approximately 2 to 7 days.
In people, cutaneous anthrax accounts for about 95% of all infections and develops when B. anthracis comes in contact with the skin. Antibiotic treatment cures cutaneous anthrax; if appropriately treated, death is rare.
Intestinal anthrax results from consumption of contaminated and undercooked meat. Affected individuals may experience nausea, vomiting, and fever, followed by abdominal pain, blood in the vomitus, and severe diarrhea. Mortality is estimated at 25 to 75%. No case of intestinal anthrax has been reported in Bangladesh so far.
Inhalational anthrax may initially present as a flu-like illness. A short period of improvement may follow, after which the patient rapidly deteriorates with high fever, respiratory distress, and shock. Fatalities approach 95% if not treated within the first 48 hours. It is very rare.

Anthrax in animals

Anthrax infection in animals can be respiratory or intestinal. Clinical signs may include fever, respiratory difficulty, excitement followed by depression, incoordination, vomiting, diarrhea, bloody discharges, convulsions, and death.
Prevention
Prevention of anthrax in both humans and animals is based on control measures in livestock in endemic areas, such as the safe disposal of anthrax carcasses and mass vaccination of cattle. The most efficient method of disposal is incineration in a manner that ensures heat sterilization of the underlying soil. However, vaccination of livestock is the most efficient way of preventing this disease.
Isolation of human cases is not required and there are no quarantine requirements as human to human transmission has not been documented. Dressings and other contaminated materials should be disposed of, preferably by incineration.








Some remarkable points about widely talked Anthrax:
•Anthrax infection is a condition caused by a bacteria Bacillus anthracis that usually causes infections with mainly domestic animals like cattle, goats, sheep, dogs, horses etc. The infection in humans is also called ‘Woolsorters disease’.
•The bacterium infects the skin — most occupational cases are skin infections. But fortunately, skin infections are less severe and a more easily treated. It also infects the lungs — causing a form of pneumonia. It infects many small air sacs in the lung. This tends to be the most dangerous form. It sometimes infects the intestines. But this is rather rare.

Treatment
Infection in human can be treated with antibiotics. Because the course of the disease is rapid, prompt administration is essential. Effective antibiotics include ciprofloxacin, doxycycline, and phenoxymethyl penicillin.

this article does not provide anthrax treatment advice. You should consult a qualified medical doctor for Anthrax infection advice and treatment specific to you.


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