The Problem

Tuberculosis is a chronic, infective and deathly disease caused by Mycobacterium Tuberculosis. Tuberculosis frequently attacks lungs but it is besides known for assailing other parts of the organic structure ( extrapulmonary TB ) . The infection site of extrapulmonary TB includes the cardinal nervous system, the lymphatic system peculiarly in the cervix, GU system and castanetss and articulations. Peoples with active TB frequently show some of these symptoms:

Chest hurting

Coughing up blood

Drawn-out cough for more than three hebdomads

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Night workout suits

Loss of appetency

Loss of weight


The premier cause for TB is the bacteria known as Mycobacterium TB. It is a Gram-resistant ( waxen cell wall ) , non-motile, pleomorphic rod linked to the Actinomyces.

Mycobacteria TB

Figure1-Electron micrograph of M. TB courtesy of the Institute Pasteur image library hypertext transfer protocol: //

Mycobacterias are found copiously in home grounds such as pool and dirt. However, a few are intracellular pathogens to animate beings and worlds. Tuberculosis is transmitted through aerosol path but the transmittal can besides happen via GI path. Coughing, sneezing and ptyalizing by people with active TB releases droplet nuclei incorporating the source which is known as B into the air. The droplet karyon can stay suspended in the air for up to several hours. Infection merely occurs when person inhales the droplet karyon. A individual needs merely to inhale a

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little figure of these to be infected. A individual infected with TB source will non needfully go ill with the disease. This type of infection is known as latent infection. This is because the immune system deactivates the TB B by covering it with midst, waxen coat. The B can stay hibernating for old ages. Tuberculosis is aggravated by increasing age factor. Tuberculosis besides depends straight on the grade of exposure towards the disease. Figure2- Terbium by age group Source: NWT Department of Health and Social Services hypertext transfer protocol: //

HIV which causes AIDS besides aggravates TB. Both factors result in weakening of the immune system which causes it to be unable to “ palisade off ” the TB B. Hence, opportunities of going sick are greater when immune system is undermined.

Tuberculosis is, now, one of the universe ‘s most common infective disease with one 3rd universe ‘s population is thought to be infected by this deadly disease.

Person in the universe is freshly infected with TB B every second.

Overall, tierce of the universe ‘s population is presently infected with the TB B.

5-10 % of people who are infected with TB B ( but who are non infected with HIV ) become ill or infective at some clip during their life. Peoples with HIV and TB infection are much more likely to develop TB. Extracted from WHO Tuberculosis

With the job on the rise, so far, there is no absolute remedy for TB although it can be

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treated with bing drugs and medicines. To do the status even worse, new TB source ( XDR-TB ) that is highly immune to drugs has been found in US. Now, the authoritiess are concentrating more on the preventative step and at the same clip, seeking for a possible drug or vaccinum that could extinguish the job one time and for all. So, to turn to this issue, I have focused my research on this inquiry “ What are current available interventions for TB? ”

Current Possible Solution

With the promotion of engineering, world had the power in battling with deathly diseases. Tuberculosis, which had killed 1000000s of people in the 19th century, was brought under control by utilizing vaccinums and drugs. Drug interventions are used extensively in handling people with active TB. Latent TB, nevertheless, does non necessitate intensive attention but simply prescribed medicine for several months. Vaccines, on the contrary, are used as preventative steps in countries of higher TB hazard. Apart from that, vaccinums are used by healthcare workers, neonates, and travellers who are at changeless hazard of acquiring infected by the disease. One of the most normally used vaccinum in bar of TB, the BCG vaccinum, is discussed below. But, foremost, I will discourse about the drug interventions.

Tuberculosis treated with drugs has a mortality rate of less than 5 % . This shows that the current available drugs for TB are rather effectual in handling the disease. Among the common drugs used in TB intervention are isoniazid, rifampicin, pyrazinamide, and ethambutol. These drugs aim at suppressing the bacterial activity therefore bettering the patient ‘s conditions.

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Figure 3: Assorted pharmaceutical drugs and their actions hypertext transfer protocol: //

Anti-tuberculosis drugs are classified into three major classs. They are the first line drugs, the 2nd line drugs and the 3rd line drugs. These drugs are classified harmonizing to their effectivity in handling the disease and their handiness.

The first line drugs are as follows:

Ethambutol-EMB or Tocopherol,

Isoniazid-INH or H,

Pyrazinamide-PZA or Z,

Rifampicin-RMP or R,

Streptomycin-STM or S ( 802 words )

There are six categories of 2nd line drugs. These drugs are classified 2nd category because they may be less effectual than first line drugs ( p-aminosalicylic acid ) , they may hold harmful side-effects ( cycloserine ) or they may non be available in the development states ( fluoroquinolones ) .

aminoglycosides: e.g.-amikacin ( AMK ) , kanamycin ( KM ) ;

polypeptides: e.g.-capreomycin, Viocin, enviomycin ;

fluoroquinolones: e.g.-ciprofloxacin ( CIP ) , levofloxacin, moxifloxacin ( MXF ) ;

thioamides: e.g.-ethionamide, prothionamide ;

cycloserine ( the merely antibiotic in its category ) ;

p-aminosalicylic acid ( PAS or P ) .

Other drugs ( 3rd line drugs ) that may be utile, but are non on the WHO list:


macrolides: e.g.-clarithromycin ( CLR ) ;

linezolid ( LZD ) ;

thioacetazone ( T ) ;

Mellaril ;

arginine ;

vitamin D ;


Tuberculosis interventions are frequently done as combination therapies ( except for latent TB where merely one type of drug is prescribed to the patient ) because individual drug therapy would ensue in rapid development of opposition which would take to the failure of the intervention. Besides that, there are other grounds to back up the combination therapy. Different drugs have different signifier of action. For illustration, PZA is a weak bactericidal but is really effectual against bacteriums located in acidic conditions. On the other manus, INH is really effectual against retroflexing bacteriums. RMP is a good bactericidal and at the same clip, has sterilising effects. This proves that, utilizing combination therapy is effectual to counter the disease and at the same clip, it would forestall the mutant of the bacteriums into drug resistant.

Upon infection, TB bacteriums are taken up by the alveolar macrophages and are carried to the lymph nodes where it may be spread to other parts of the organic structure ( this is the footing of extrapulmonary TB ) . Two to eight hebdomads after infection, hypersensitivity and cell-mediated unsusceptibility develops and suppression of the infection will ensue in people with good, healthy immune system. Peoples, who are immunocompromised, will develop inflammatory immune response which finally leads to lung harm. These drugs maps by restricting the bacterium and at the same clip, since it has antibiotic effects, it will kill the bacteriums, therefore, bettering the patient ‘s status. It would normally take about six months or more for full

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recovery with 2-3 % of backsliding rate. Continuance of medicine would be recommended by the doctor to avoid the job signifier reappearing. Isoniazid is one peculiar type of the drug which is normally used due to its effectivity in handling TB.

“ This medicine is best taken on an empty tummy 1 hr before or 2 hours after repasts. But it may be taken with nutrient or milk if tummy disturbance occurs. Take as directed. Make non halt taking this medicine without your physician ‘s blessing. Stoping therapy early may ensue in uneffective intervention and the infection could repeat. Vitamin B6 ( vitamin B6 ) addendums may be prescribed in add-on to this medicine to forestall numbness and prickling. ” Extracted from Isoniazid ORAL ( Niazid ) side effects, medical utilizations and drug interaction.

Fgure4- Effect of acetylsalicylic acid or isobutylphenyl propionic acid administered in combination with INH on lung ( a ) and spleen ( B ) log10 CFU in murine TB. ASP merely, acetylsalicylic acid ( 20 mg/kg of organic structure weight ) ; IBU merely, isobutylphenyl propionic acid ( 20 mg/kg ) ; INH merely, INH ( 25 mg/kg ) ; ASP+INH, acetylsalicylic acid and INH ( 20 and 25 mg/kg, severally ) ; IBU+INH, isobutylphenyl propionic acid and INH ( 20 and 25 mg/kg, severally ) .

There is dependable and concrete grounds that INH is effectual in controling the disease. The graph shows clearly that when INH is administered to a patient with murine TB, it efficaciously inhibits the advancement of the disease. This can be seen when there is zero tubercular bacteria count when INH is administered. The drug acts in the same manner in both liver and lien. Other drugs, such as isobutylphenyl propionic acid and acetylsalicylic acid are used to compare the comparative effectivity of each single drug. Ibuprofen seems non to interfere with the INH mechanism while aspirin reduces the effectivity of INH. So, acetylsalicylic acid should be avoided when utilizing drug government incorporating INH to forestall it from interfering with INH mechanism. ( 1447 words )

Benefits and Risks of Drug Treatment

As with all signifiers of medicines, TB drugs besides pose some side-effects which may do edginess to the patient. The benefits of TB drug interventions are good known. It efficaciously reduces symptoms of the disease upon the disposal of the medicine and in most instances ; the drug cures the disease with 2-3 % of backsliding rate. Drug intervention besides decreases the mortality rate significantly ; cut downing it to less than 5 % . This means figure of people deceasing from TB or TB related diseases is falling every twelvemonth.

On the other manus, the hazards of drug interventions are terrible but merely in distant instances. This is normally due to the exasperation of the side-effects by the hazard factors such as intoxicant maltreatment, history of hepatitis, diabetes mellitus and HIV infection. Increasing age is besides a hazard factor for the disobedience to the intervention. The terrible signifiers of side-effects are drug-induced hepatitis, arthralgia, cardinal nervous system toxicity and skin eruption. The drug interventions besides pose some instead common adverse-effects. These include sickness, abdominal hurting, febrility, diarrhoea and fluid ( saliva, cryings and piss ) stain.

Table1-Number of side-effects due to isoniazid,

Rifadin or pyrazinamide followed by concluding expiration of

one of the drugs ( n=519 )

Side-effect Isoniazid Rifampin Pyrazinamide Total

Hepatotoxicity 19 ( 4 ) 8 ( 1.5 ) 28 ( 5 ) 55 ( 11 )

Arthralgia 1 ( 0.2 ) 12 ( 2 ) 13 ( 2 )

Exanthema 6 ( 1.2 ) 27 ( 5 ) 33 ( 6 )

CNS toxicity* 8 ( 1.5 ) 8 ( 1.5 )

Nausea 5 ( 0.9 ) 5 ( 0.9 )

Others # 7 ( 1.4 ) 7 ( 1.4 )

Entire 34 ( 7 ) 8 ( 1.5 ) 79 ( 15 ) 121 ( 23 )

Valuess are present as absolute figure, and per centum in

parenthesis. * : including peripheral neuropathy ( n=6 ) and

ictus ( n=2 ) ; # : including leukopenia ( n=1 ) , fever ( n=3 ) and

terrible hyperuricaemia ( n=3 ) . Central nervous system: cardinal nervous system.

After measuring both pros and cons of the drug intervention, I feel that the benefits of drug intervention outweigh the hazards. Therefore, the hazards should non deter the patient from go oning the medicine. The completion of the medicine is critical for the full recovery from the disease.

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Social and Economic Implications of the Disease

Tuberculosis is the universe ‘s largest endemic with one tierce of universe population being infected with the disease. And TB remains the greatest panic in developing states. This is because the disease causes intolerable societal and economic deductions to the 1 infected with the disease.

“ The significant non-treatment costs of TB are borne by the patients and their

households. These are frequently greater than the costs of intervention to the wellness sector.

The largest indirect cost of TB for a patient is income lost by being excessively ill to work.

Surveies suggest that on mean three to four months of work clip are lost, ensuing

in norm lost possible net incomes of 20 % to 30 % of one-year household income.

For the households of those that die from the disease, there is the farther loss of about

15 old ages of income because of the premature decease of the TB sick person. ”

Extracted from the Stop Tb Initiative by WHO

It is really clear that TB, left untreated, would ensue in loss in footings of fiscal support. Therefore, it is critical for the authorization to supply necessary intervention to the patients and, at the same clip, they should besides work on preventative steps such as awareness runs and inoculations to forestall the spread of the disease.

The World Health Organization ( WHO ) have cited TB intervention as one of the most cost-efficient wellness intercessions accessible – at a cost of merely $ 10 for every twelvemonth of life gained.

“ Efficaciously handling TB will non work out the worldwide AIDS crisis, but it will significantly cut down its load ”

Dr Piot, Executive Director, Joint United Nations Program on HIV/AIDS

On the other manus, a individual with TB would hold to populate as an “ castaway ” . This is really true in the poorer states of the universe where the people do non hold plenty cognition about the disease therefore expatriating the patient from their community. This would ensue in the patient losing moral support and religion which may finally take to suicide.

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Alternate Solution

Ayurvedic intervention

Ayurveda, traditional Indian medicine, is besides proven to be effectual in battling against TB. Current TB drug interventions induce unfavorable side-effects such as reduced appetency and liver redness. On the long tally, it could take to lasting liver harm. Therefore, combined with ayuvedic medicine such as Kutki ( Picrorrhiza kurroa ) , Guduchi ( Tinospora cordifolia ) , Sharapunkha ( Tephrosia purpurea ) and Kalmegh ( Andrographis paniculata ) would forestall any harm to the liver and would ensue in increased efficiency in handling the disease. Tuberculosis of the lymph secretory organs besides could do serious jobs. Ayurvedic medical specialties like Kancnnaar ( Bauhinia variegata ) , Kanchnaar Guggulu and Triphala Guggulu can increase the organic structure ‘s immune response towards the disease. These ayurvedic medical specialties when combined with right drug governments would efficaciously contend off the disease and prevent it from get worsing. Ayurvedic medical specialties are known to increase immune response significantly, therefore, doing the organic structure to be able to contend the infection.

Prevention Methods


Besides drug interventions, there is another practical attack to eliminate the endemic worldwide. This solution aims at forestalling the disease. Inoculation is the best, available solution for most of the contagious disease. For TB, Bacillus Calmette Guerin ( BCG ) is the current available vaccinum. This vaccinum is really an attenuated strain of unrecorded mycobacteria bovis which has lost its virulency after being carefully cultured unnaturally for many old ages. This vaccinum works by supplying natural inactive unsusceptibility in which the infection with bovid TB would protect against infection with human TB. This is the consequence of memory cells in our organic structure being able to acknowledge the same type of infection and supplying instant protection against the disease. BCG is found to be really effectual in giving protection chiefly in kids aged 3 and below and adolescents aged 14-20. Efficiency of BCG besides differs harmonizing to geographics.

The first big graduated table test measuring the efficaciousness of BCG was conducted from 1956 to 1963 and involved about 60,000 school kids who received BCG at the age of 14 or 15 ; this survey showed an efficaciousness of 84 % up to 6 old ages after immunisation. However, a US Public Health Service test of BCG in Georgia and Alabama published in 1966 showed an efficaciousness of merely 14 % , and did much to convert the US that it did non desire to implement mass immunisation with BCG. A farther test conducted in South India and published in 1979 ( the “ Chingleput test ” ) , showed no protective consequence. Extracted from Bacillus_Calmette-Guerin_Wikipedia-the_free_encyclopedia.

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Reducing exposure

Tuberculosis is straight dependent on the grade of exposure. The more a individual comes into contact with the disease, the higher is the opportunity to endure from active TB. Generally, inspiration of minute sum of the B would ensue in the immune response which instantly inactivates the disease therefore forestalling it from come oning. However, a direct exposure to a comparatively high sum of the B would ensue in the immune system to be unable to palisade off the disease fast plenty. This would ensue in the individual developing active TB although he may non hold the history of the disease before. Therefore, visit to topographic points with a high incidence of TB should be avoided. Furthermore, we should besides avoid close contact with people infected by the disease. Apart from that, personal hygiene, and the pattern of have oning mask should be cultured in the society to forestall the spread of the disease. On top of that, self-quarantine should be practiced by persons if they are suspected to transport the infection.


For the research on this issue, I have used a figure of beginnings runing from web sites to newspaper articles and books. The World Health Organisation functionary web page ; hypertext transfer protocol: // is one of the beginnings that I have used in my research. I find that this website provides tonss of information sing TB. This beginning is decidedly trustable as it is the official web page of a world-recognized organisation which is committed to the public assistance of the people. The facts and information obtained from this web site is valid and dependable under any fortunes because they are up to day of the month. Furthermore, WHO have besides organized research on this issue and the findings have been reviewed by experts from all over the universe. One such research is the ‘Economic Impacts of Tuberculosis ‘ . On top of that, I found that a batch of other web sites such as hypertext transfer protocol: //, hypertext transfer protocol: // Department of the Interior % 2F10.1371 % 2Fjournal.ppat.1000600 and hypertext transfer protocol: // have cited WHO in their web sites. This proves that WHO is a dependable beginning of information for this issue.

Furthermore, I have evaluated another beginning hypertext transfer protocol: // and found that there are similarities in footings of facts presented in the web site with other celebrated web sites such as hypertext transfer protocol: //, hypertext transfer protocol: //, and hypertext transfer protocol: // Similar information was besides found in the diary ‘Risk factors for side-effects of INH, Rifadin and pyrazinamide in patients hospitalized for pneumonic TB ‘ from the European Respiratory Journal. This beginning, hence, is trustable because it has a batch of correspondence with other beginnings.

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