Friday, 17 April 2020

COVID-19: What are the implications for humanitarian shelter?

Sue Webb and Emma Weinstein-Sheffield write:


Key messages: 

  1. The current COVID-19 pandemic amplifies existing humanitarian and development challenges, including those relating to housing.
  2. Shelter practitioners need to be aware of the immediate and long-term impacts of COVID-19, including the economic impact on renters and marginalised groups and should address these risks as best they can during the peak of the crisis.
  3. Immediate risk mitigation should include addressing overcrowding, poor ventilation and access to sanitation and hygiene facilities and will require close coordination with the WASH and health sectors.
  4. The pandemic highlights how poor-quality housing and settlement planning increase the risk of communicable diseases and exacerbate some non-communicable diseases. There is a need for further research on the potential beneficial health impacts of humanitarian shelter responses. 
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“In addition to providing protection from weather, shelter is necessary to promote health, support family and community life, and provide dignity, security and access to livelihoods”[1]

The current COVID-19 pandemic provides a timely opportunity to re-examine the relationship between shelter and health issues and to consider what actions the Shelter Sector should take during the current crisis and in the longer term. This blog post addresses the following questions, whilst also acknowledging the limitations to our knowledge of the future progress of the pandemic:

●      What is the relative scale of different risks to life and wellbeing, particularly for children, that are connected to shelter and settlements?

●      How does the risk of COVID-19 compare with these other risks and how contextual is this risk?

●      How should shelter programming be adapted in the current pandemic situation and in the future?

Links between shelter and health

Globally, in the development and public/environmental health fields, there is increasing awareness of the relationships between housing and health. The World Health Organisation’s Housing and Health Guidelines[2] note that “poor housing conditions are one of the mechanisms through which social and environmental inequality translates into health inequality, which further affects quality of life and well-being.” The Global Shelter Cluster similarly recognises the huge numbers globally affected by health issues that are at least in part related to shelter and settlement conditions.[3] Shelter-related challenges to health worldwide include overcrowding, indoor air pollution and inadequate water and sanitation facilities, both within the home and wider settlements. These challenges link directly to many of the causes of mortality and morbidity; they are exacerbated in humanitarian settings where shelters are often at high density. Whilst overcrowding does not kill people directly, it is a risk factor for the spread of infectious diseases such as TB and COVID-19. Shelter-related health challenges are linked to a high proportion of global deaths, as highlighted in data analysed by the Global Burden of Disease[4] (see following figure).




Globally the majority of deaths are caused by non-communicable diseases. However, this does not hold true in low-income settings where communicable diseases account for the majority of deaths. There are significant geographical variations in causes of mortality and morbidity and related burden of disease figures. For example, most worldwide deaths from lower respiratory infections such as pneumonia occur in Sub-Saharan Africa and SE Asia; the concentration of malaria deaths are to be found in sub-Saharan Africa where, in Uganda, there is significant evidence to suggest high incidences of malaria in children could be associated with housing quality.[5] Many health risks require local analysis, but it is true to say that many communicable and non-communicable diseases already disproportionately impact the poorest and most vulnerable communities worldwide. 

The possible impacts of COVID-19 - so much is unknown

Even in the UK, one of the richest countries in the world, COVID-19 and the actions to mitigate its spread have highlighted existing inequalities in housing and their repercussions for both physical and mental health.[6] People living in the private rented sector in the UK are particularly at risk from poor quality, overcrowded and precarious housing and the current crisis has brought this into focus. In low income settings around the world, particularly in displacement camps[7] and urban slums[8], the spread of COVID-19 is also likely to be exacerbated by crowded conditions and poor access to sanitation and hygiene. There are serious humanitarian implications that must be addressed by humanitarian actors.

At the time of writing, there are over 2.1 million known cases and over 146,000 confirmed deaths globally.[9] However, there are no reliable data on the total number of cases – solely the number confirmed by tests – and the pattern of testing is very uneven. Case fatality rates are already varied, with many factors such as age structure, social housing norms, population density, patterns of underlying health conditions and capacity of healthcare systems certain to have an effect on eventual fatality rates in different settings. Projections of total infections, deaths and their geographic spread over the next months or years are problematic. It is therefore highly speculative and possibly unhelpful to attempt to compare COVID-19 with other causes of death. Nevertheless, the section below aims to explore the relative scale of health risks to children in order to suggest that COVID-19 is one risk among many that need to be considered by shelter practitioners. The pandemic is exposing and exacerbating wider intersectional and class issues - people around the world living in overcrowded homes and settlements are at greater risk from COVID as well as multitude of other health risks, and have little power to influence improvements to their living conditions. 

Children, COVID-19 and other health risks

Women, children and those living with disabilities are particularly vulnerable to housing-related health risks as they are frequently more confined to their dwellings. Inadequate housing has particular impacts on children’s health: 

“Children are more vulnerable to indoor exposures due to their behaviour, the lower capacity of their immune systems, and the fact that they have, relative to their body weight, a much higher intake of pollutants than adults”[10] 

While the total number of annual child deaths has more than halved from 11.8 million in 1990 to 5.4 million in 2017, the major causes of child deaths have largely remained the same. 15,000 deaths per day of children under 5 globally rarely makes headlines: yet a large percentage of the most common causes of death for this age group – pneumonia, diarrhoea and malaria – are preventable by interventions known to reduce environmental risks within the home, such as access to safe water, adequate vector control and clean cooking fuels. Pneumonia alone, linked strongly to indoor air pollution as well as other risk factors such as malnutrition, killed over 800,000 children in 2017. Diarrhoea killed over 500,000 and malaria over 350,000. In countries with low socio-economic indices, the proportion of child deaths that are linked to unhealthy living conditions is particularly high, as shown in the figure below[11]. 


Unlike malaria, where 57% of global deaths are in children under 5, current data trends suggest older people are at a higher risk from COVID-19, with over 95% of deaths occurring in those older than 60 years[12]; the case fatality rate for children is very low. It appears that for this demographic group at least, COVID-19 will present a lower direct risk than the existing environmental risks they are exposed to, including those related to their shelter. However, they will still be acutely affected by the socio-economic impacts of the virus, for example the loss of a primary caregiver, loss of family income or increased risks of abuse.[13] Responses to COVID-19 may not directly address the current and pre-existing health risks to children that are responsible for significantly higher death rates in low-income settings. However, improvement in living conditions through less overcrowding and increased access to hygiene and sanitation facilities, both within the home and wider settlement, would mitigate many environmental risks and help address some of the greatest causes of deaths in children. 

The humanitarian shelter response to the current COVID-19 pandemic

Arguably, humanitarians should evaluate COVID-19 as a hazard like any other, with its own risk parameters, expected outcomes and impacts to be weighed against costs of mitigation options.[14] As it is a highly infectious disease whose spread and impact can be linked in part to housing, the Shelter Sector needs to consider its role in mitigating these impacts - both now with immediate effect, and also in future policy and practice. In low-income countries and humanitarian settings, COVID-19 is a new and currently all-consuming health threat to add to those risks already endemic in so many multi-hazard environments. While in the UK, it can be accurately described as unprecedented, for many countries it is one additional risk to the many already facing the population. Governments, institutions and communities are already grappling with the need to evaluate the relative risks of disease, climate change and natural hazards and to prepare for and mitigate them. Between 2030 and 2050, climate change is expected to cause approximately 250,000 additional deaths per year, from malnutrition, malaria, diarrhoea and heat stress alone[15]. Negative social and economic impacts of climate change are also likely to be worse in poorest communities in all parts of the world.

Where the Shelter Sector has on-going responses, there is an imperative to implement any practice that can reduce the spread and impact of COVID-19. What those measures may be will depend on the context and the availability of resources and land. The Global Shelter Cluster has already published its COVID-19 response plan, identifying five ways that on-going Shelter and Settlements programmes can help to minimise the spread of the virus. These include reducing overcrowding and density of settlements where possible, planning and building isolation areas and medical facilities and distributing humanitarian assistance (including NFIs) in ways which avoid spreading the virus.[16] Other responses could include the decongestion of camps, an increase in covered living space and replanning of areas where people gather. In reality, the potential for making a significant difference within a meaningful timeframe, in established camps and settlements, is likely to be very limited. The significance of any mitigating action should be considered in collaboration with health experts. For example, can living space be increased sufficiently to ensure ‘social distancing’? If not, then is the budget best spent on a more relevant measure such as targeting the most vulnerable, or improving household level washing facilities? To achieve well-informed, ‘better’ shelter responses after disasters and conflict, there is a need for cross-sectoral/cluster coordination and an interdisciplinary lens. The way that Shelter interacts with Health and WASH sectors is of particular relevance in the current pandemic. 

Longer-term responses by the humanitarian sector to unhealthy housing

What seems, from the viewpoint of this global crisis, to be beyond debate is that much greater consideration needs to be given to the connections between adequate housing and good health. Substandard housing, with overcrowding and poor water and sanitation, will exacerbate the spread of COVID-19 with fatal consequences. This is nothing new: poor indoor air quality, contaminated water and inadequate vector control are all endemic housing-related risk factors causing millions of fatalities each year and that also have extensive social and economic consequences. While the ability of the humanitarian Shelter Sector to have a positive impact on the spread of the current pandemic may be somewhat limited, it is nonetheless crystal clear that humanitarian crises pose an opportunity to ensure that ‘healthy housing’ is an integral part of future shelter responses. It is well-accepted that there is a need for research into the wider impacts of shelter programming[17]; the current COVID crisis casts a spotlight, if ever it was needed, on to the imperative of a healthy home. Good humanitarian shelter programming, that holds strong to this principle, can have a beneficial impact on the health of everyone, but especially children, women and the elderly. 

With thanks to Bill Flinn and Beth Simons for their contributions to this article.

This research was made possible by funding from the GCFR Translations Award (grant EP/T015160/1) for the Self-recovery from Humanitarian Crisis project.


[1]Sphere Association (2018) The Sphere Handbook: Humanitarian Charter and Minimum Standards in Humanitarian Response, fourth edition, Geneva, Switzerland p240
[2] WHO (2018) Housing and Health Guidelines p xv  WHO Housing and health guidelines
[3] Flinn, B., Schofield, H. and Miranda Morel, L. (2017) ‘The Case for Self-Recovery’ Forced Migration Review 55 pp 12-14.
[4] Global Burden of Disease http://ghdx.healthdata.org/gbd-2017
[5] Snyman, K., Mwangwa, F., Bigira, V., Kapisi, J., Clark, T. D., Osterbauer, B., Greenhouse, B., Sturrock, H., Gosling, R., Liu, J., & Dorsey, G. (2015). Poor housing construction associated with increased malaria incidence in a cohort of young Ugandan children. The American journal of tropical medicine and hygiene, 92(6), 1207–1213.
[6] Clair, A. ‘Homes, health, and COVID-19: how poor housing adds to the hardship of the coronavirus crisis’ 2/4/2020 ESRC Research Centre for Micro-Social Change, Institute for Social and Economic Research, University of Essex http://www.smf.co.uk/homes-health-and-covid-19-how-poor-housing-adds-to-the-hardship-of-the-coronavirus-crisis/
[8] Ellis-Petersen, H. and Azizur Rahman, S. (2020)  ‘'We are very afraid': scramble to contain coronavirus in Mumbai slum’ The Guardian 7th April 2020 https://www.theguardian.com/world/2020/apr/07/we-are-very-afraid-scramble-contain-coronavirus-mumbai-slum-dharavi
[10] WHO (2017) Inheriting a sustainable world? Atlas on children’s health and the environment. Geneva
[11] Richie and Roser (2020) "Causes of Death". Published online at OurWorldInData.org. Retrieved from: 'https://ourworldindata.org/causes-of-death' [Online Resource]
[12]http://www.euro.who.int/en/health-topics/health-emergencies/coronavirus-covid-19/statements/statement-older-people-are-at-highest-risk-from-covid-19,-but-all-must-act-to-prevent-community-spread
[13] The Alliance for Child Protection in Humanitarian Action, Technical Note: Protection of Children during the Coronavirus Pandemic, Version 1, March 2019
[14] Shepherd-Barron, J. (2020) ‘Disaster Economics. COVID19: Is the gain worth the pain?’ Aid Essentials 30/3/2020 https://www.aidessentials.org/category/disaster-management/disaster-economics/#_ftn2
[17] Kelling, F. (2020) The Wider Impacts of Humanitarian Shelter and Settlements Assistance. InterAction.

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