World TB Day

Debate between Dan Poulter and Lord Herbert of South Downs

Wednesday 27th March 2019 Westminster Hall

[Nick Herbert (Arundel and South Downs) (Con)]

I beg to move,

That this House has considered World TB Day and the efforts to end tuberculosis globally.

I am delighted to be able to introduce this debate. It was World TB Day on Sunday, but this is not an anniversary that we should be having to mark at all. It is wrong and extraordinary that we still have to debate the toll from death and suffering of a disease that has been curable for well over half a century, since the discovery of antibiotics by Fleming in 1928. It is unnecessary that so many people die from tuberculosis.

Imagine if the World Health Organisation announced tomorrow that a new disease had been discovered that was highly infectious, airborne and susceptible to drug-resistance, and that next year 10 million people would fall sick, of whom 1.6 million people would die. Imagine the global response to that news. That is in fact a description of the reality of tuberculosis. TB kills more people every year than HIV/AIDS and malaria combined —1.6 million people last year. Of course, there is overlap between HIV/AIDS and TB, because the AIDS epidemic in the 1980s drove the resurgence of tuberculosis. A disease that the world thought it had beaten has come back with a vengeance.

TB was first declared a global health emergency 25 years ago, in 1993. Since then, 50 million people have died. Just consider that. A disease is declared a global health emergency and subsequently 50 million people die, yet that disease is treatable and curable. That represents nothing less than a catastrophic failure on the part of the world’s Governments to deal with a disease that we should deal with more effectively.

[Dr Dan Poulter (Central Suffolk and North Ipswich) (Con)]

My right hon. Friend is making some good points and I congratulate him on securing the debate. He mentions the failure of world Governments. There is clearly a need for greater urgency in the approach taken by the international community in dealing with this issue, but what about the behaviour of pharmaceutical companies, which rarely invest in drugs that will help people in low and middle-income countries in the way that they would do in lucrative medications that they can sell in higher income countries, such as Great Britain?

[Nick Herbert]

My hon. Friend makes a good point, but I do not blame pharmaceutical companies, because I think this is a clear case of market failure. The fact is that the demand for better TB drugs, which we need, falls largely in low and middle-income countries, so there is no commercial case for sufficient investment in these new drugs. It can therefore proceed only on a public-private partnership basis. Some pharmaceutical companies have a pro bono programme for the drugs that do exist, such as Johnson & Johnson, where there is a drug to deal with drug-resistant TB. However, that is still insufficient.

This market failure is a striking contrast with what happened with AIDS. There was a serious response to the AIDS epidemic from pharmaceutical companies, not only from publicly funded programmes, but from commercially funded investment. As a consequence we have had extraordinary innovation, and new drugs that can prevent HIV and ensure that it is not a death sentence are available. What is the difference between the two? AIDS was a disease that was killing people in the west and TB is a disease that kills the poor. That is the fundamental difference. That is why we have not had the same level of investment in tuberculosis. Another fundamental difference is that TB was already curable with antibiotics. It is just that these antibiotics were not being delivered, TB patients were not being identified and we did not have the health systems to do it.

[Dr Poulter]

I am a little more sceptical about the operation of some pharmaceutical companies than my right hon. Friend. In fact, one reason that the global community was able to so effectively deal with HIV—he is right to identify TB as an AIDS-defining disease—was that international Governments brought pressure to bear on pharmaceutical companies to drop the price of the medications, and push medications out in low and middle-income countries. That has not happened with TB. Unless there is a concerted effort from global Governments to encourage pharmaceutical companies to behave with greater global awareness and corporate responsibility, I am not sure we will see much change in the situation that he is describing, and change is badly needed.

[Nick Herbert]

This is an interesting debate, but I disagree with my hon. Friend. The drugs are not in the pipeline, because the return on investment for these companies is insufficient in the first place. I do not think that they are sitting on drugs that are available for wealthier people, which, if pressed, they could simply roll out to poorer people. There is an insufficient quantum of investment in research and development. I will come on to that point. I do not think that the need can be met by the private sector alone.

I believe that there are three key reasons why we need to take more action against this disease: humanitarian reasons, economic reasons and reasons of global public health. The humanitarian reason is that so many people are dying needlessly from this disease and falling sick. The figures speak for themselves.

The economic reason is that this awful loss of life and this illness are a drag on economic success in the poorest countries, hindering their development. There will also be a serious economic impact if we fail to tackle the disease. By 2030, it is estimated that if the current trajectory of TB continues, that will cost the world’s economies $1 trillion. Some 60% of that cost will be concentrated in the G20, and it will be caused by the 28 million deaths over that period. That is a terrible statistic, because that is the period over which tuberculosis is meant to be beaten according to the sustainable development goals. The United Nations set those goals four years ago, and said that the major epidemics—AIDS, malaria and TB—would be beaten in 15 years’ time. We have just 11 years to go. On the current trajectory, TB will not be beaten for well over 100 years. There will be a further 28 million deaths during that period alone, as well as huge economic costs.

The global public health reason is the susceptibility of tuberculosis to drug resistance, because of the old-fashioned drugs that are used to treat tuberculosis. People who take the drugs do not continue with their treatment and it is a very serious fact that there are well over 500,000 cases of drug-resistant TB in the world. The highest burden is actually in the European region. Only one in four people who have drug-resistant TB can access treatment.

We know that there are 3.5 million missing cases of TB every year that are simply undiagnosed, accounting for one in three sufferers. The proportion is much higher for drug-resistant TB, where 71% of people are missing. This constitutes not only a humanitarian issue, but a serious risk to global public health, because this is an airborne, highly infectious disease.