Etyang, Anthony O; Adetifa, Ifedayo; Omore, Richard; Misore, Thomas; Ziraba, Abdhalah K; Ng’oda, Maurine A; Gitau, Evelyn; Gitonga, John; Mugo, Daisy; Kutima, Bernadette; +32 more... Karanja, Henry; Toroitich, Monica; Nyagwange, James; Tuju, James; Wanjiku, Perpetual; Aman, Rashid; Amoth, Patrick; Mwangangi, Mercy; Kasera, Kadondi; Ng’ang’a, Wangari; Akech, Donald; Sigilai, Antipa; Karia, Boniface; Karani, Angela; Voller, Shirine; Agoti, Charles N; Ochola-Oyier, Lynette I; Otiende, Mark; Bottomley, Christian; Nyaguara, Amek; Uyoga, Sophie; Gallagher, Katherine; Kagucia, Eunice W; Onyango, Dickens; Tsofa, Benjamin; Mwangangi, Joseph; Maitha, Eric; Barasa, Edwine; Bejon, Philip; Warimwe, George M; Scott, J Anthony G; Agweyu, Ambrose; (2022) SARS-CoV-2 seroprevalence in three Kenyan health and demographic surveillance sites, December 2020-May 2021. PLOS Global Public Health, 2 (8). e0000883-e0000883. ISSN 2767-3375 DOI: https://doi.org/10.1371/journal.pgph.0000883

Lucinde, RK; Karia, B; Ouma, N; Amadi, D; Nyundo, C; Mataza, C; Nyaguara, A; Scott, JAG; Gallagher, KE; Kagucia, E; (2022) The impact of the COVID-19 pandemic on vaccine coverage in Kilifi, Kenya: A retrospective cohort study. Vaccine, 41 (3). pp. 666-675. ISSN 0264-410X DOI: https://doi.org/10.1016/j.vaccine.2022.10.074

Lucinde, Ruth K; Mugo, Daisy; Bottomley, Christian; Karani, Angela; Gardiner, Elizabeth; Aziza, Rabia; Gitonga, John N; Karanja, Henry; Nyagwange, James; Tuju, James; +32 more... Wanjiku, Perpetual; Nzomo, Edward; Kamuri, Evans; Thuranira, Kaugiria; Agunda, Sarah; Nyutu, Gideon; Etyang, Anthony O; Adetifa, Ifedayo MO; Kagucia, Eunice; Uyoga, Sophie; Otiende, Mark; Otieno, Edward; Ndwiga, Leonard; Agoti, Charles N; Aman, Rashid A; Mwangangi, Mercy; Amoth, Patrick; Kasera, Kadondi; Nyaguara, Amek; Ng'ang'a, Wangari; Ochola, Lucy B; Namdala, Emukule; Gaunya, Oscar; Okuku, Rosemary; Barasa, Edwine; Bejon, Philip; Tsofa, Benjamin; Ochola-Oyier, L Isabella; Warimwe, George M; Agweyu, Ambrose; Scott, J Anthony G; Gallagher, Katherine E; (2022) Sero-surveillance for IgG to SARS-CoV-2 at antenatal care clinics in three Kenyan referral hospitals: Repeated cross-sectional surveys 2020-21. PLoS One, 17 (10). e0265478-. ISSN 1932-6203 DOI: https://doi.org/10.1371/journal.pone.0265478

Manno, Daniela; Ayieko, Philip; Ishola, David; Afolabi, Muhammed O; Rogers, Baimba; Baiden, Frank; Serry-Bangura, Alimamy; Bah, Osman M; Köhn, Brian; Swaray, Ibrahim; +14 more... Owusu-Kyei, Kwabena; Otieno, Godfrey T; Kowuor, Dickens; Tindanbil, Daniel; Smout, Elizabeth; Robinson, Cynthia; Keshinro, Babajide; Foster, Julie; Gallagher, Katherine; Lowe, Brett; Douoguih, Macaya; Leigh, Bailah; Greenwood, Brian; Watson-Jones, Deborah; (2022) Ebola Virus Glycoprotein IgG Seroprevalence in Community Previously Affected by Ebola, Sierra Leone. Emerging Infectious Diseases, 28 (3). pp. 734-738. ISSN 1080-6040 DOI: https://doi.org/10.3201/eid2803.211496

Thindwa, Deus; Jambo, Kondwani C; Ojal, John; MacPherson, Peter; Dennis Phiri, Mphatso; Pinsent, Amy; Khundi, McEwen; Chiume, Lingstone; Gallagher, Katherine E; Heyderman, Robert S; +3 more... Corbett, Elizabeth L; French, Neil; Flasche, Stefan; (2022) Social mixing patterns relevant to infectious diseases spread by close contact in urban Blantyre, Malawi. Epidemics, 40. 100590-. ISSN 1755-4365 DOI: https://doi.org/10.1016/j.epidem.2022.100590

Whitworth, Hilary S; Kitonsa, Jonathan; Kasonia, Kambale; Tindanbil, Daniel; Kafeero, Paddy; Bangura, Joseph; Nije, Yusupha; Tetsa Teta, Darius; Greenwood, Brian; Kavunga-Membo, Hugo; +4 more... Leigh, Bailah; Ruzagira, Eugene; Gallagher, Katherine E; Watson-Jones, Deborah; (2022) COVID-19 Vaccine Acceptability Among Healthcare Facility Workers in Sierra Leone, the Democratic Republic of Congo and Uganda: A Multi-Centre Cross-Sectional Survey. International Journal of Public Health, 67. 1605113-. ISSN 1661-8556 DOI: https://doi.org/10.3389/ijph.2022.1605113

Adetifa, Ifedayo MO; Uyoga, Sophie; Gitonga, John N; Mugo, Daisy; Otiende, Mark; Nyagwange, James; Karanja, Henry K; Tuju, James; Wanjiku, Perpetual; Aman, Rashid; +25 more... Mwangangi, Mercy; Amoth, Patrick; Kasera, Kadondi; Ng'ang'a, Wangari; Rombo, Charles; Yegon, Christine; Kithi, Khamisi; Odhiambo, Elizabeth; Rotich, Thomas; Orgut, Irene; Kihara, Sammy; Bottomley, Christian; Kagucia, Eunice W; Gallagher, Katherine E; Etyang, Anthony; Voller, Shirine; Lambe, Teresa; Wright, Daniel; Barasa, Edwine; Tsofa, Benjamin; Bejon, Philip; Ochola-Oyier, Lynette I; Agweyu, Ambrose; Scott, J Anthony G; Warimwe, George M; (2021) Temporal trends of SARS-CoV-2 seroprevalence during the first wave of the COVID-19 epidemic in Kenya. Nature communications, 12 (1). 3966-. ISSN 2041-1723 DOI: https://doi.org/10.1038/s41467-021-24062-3

Afolabi, Muhammed Olanrewaju; Ishola, David; Manno, Daniela; Keshinro, Babajide; Bokstal, Viki; Rogers, Baimba; Owusu-Kyei, Kwabena; Serry-Bangura, Alimamy; Swaray, Bob; Lowe, Brett; +24 more... Kowuor, Dickens; Baiden, Frank; Mooney, Thomas; Smout, Elizabeth; Kohn, Brian; Otieno, Godfrey; Jusu, Morrison; Foster, Julie; Samai, Mohammed; Deen, Gibrilla-Fadlu; Larson, Heidi; Lees, Shelley; Goldstein, Nein; Gallagher, Katherine; Gaddah, Augustie; Heerwegh, Dirk; Callendret, Benoit; Luhn, Kerstin; Robinson, Cynthia; Greenwood, Brian; Leyssen, Maarten; Douoguih, Macaya; Leigh, Bailah; Watson-Jones, Deborah; (2021) Safety and immunogenicity of the two-dose heterologous Ad26.ZEBOV and MVA-BN-Filo Ebola vaccine regimen in children in Sierra Leone: a randomised, double-blind, controlled trial. Lancet Infectious Diseases. ISSN 1473-3099 DOI: https://doi.org/10.1016/S1473-3099(21)00128-6

Bottomley, C; Otiende, M; Uyoga, S; Gallagher, K; Kagucia, EW; Etyang, AO; Mugo, D; Gitonga, J; Karanja, H; Nyagwange, J; +5 more... Adetifa, IMO; Agweyu, A; Nokes, DJ; Warimwe, GM; Scott, JAG; (2021) Quantifying previous SARS-CoV-2 infection through mixture modelling of antibody levels. Nature communications, 12 (1). 6196-. ISSN 2041-1723 DOI: https://doi.org/10.1038/s41467-021-26452-z

Etyang, Anthony O; Lucinde, Ruth; Karanja, Henry; Kalu, Catherine; Mugo, Daisy; Nyagwange, James; Gitonga, John; Tuju, James; Wanjiku, Perpetual; Karani, Angela; +40 more... Mutua, Shadrack; Maroko, Hosea; Nzomo, Eddy; Maitha, Eric; Kamuri, Evanson; Kaugiria, Thuranira; Weru, Justus; Ochola, Lucy B; Kilimo, Nelson; Charo, Sande; Emukule, Namdala; Moracha, Wycliffe; Mukabi, David; Okuku, Rosemary; Ogutu, Monicah; Angujo, Barrack; Otiende, Mark; Bottomley, Christian; Otieno, Edward; Ndwiga, Leonard; Nyaguara, Amek; Voller, Shirine; Agoti, Charles N; Nokes, David James; Ochola-Oyier, Lynette Isabella; Aman, Rashid; Amoth, Patrick; Mwangangi, Mercy; Kasera, Kadondi; Ng'ang'a, Wangari; Adetifa, Ifedayo MO; Wangeci Kagucia, E; Gallagher, Katherine; Uyoga, Sophie; Tsofa, Benjamin; Barasa, Edwine; Bejon, Philip; Scott, J Anthony G; Agweyu, Ambrose; Warimwe, George M; (2021) Seroprevalence of Antibodies to Severe Acute Respiratory Syndrome Coronavirus 2 Among Healthcare Workers in Kenya. Clinical infectious diseases : an official publication of the Infectious Diseases Society of America, 74 (2). pp. 288-293. ISSN 1058-4838 DOI: https://doi.org/10.1093/cid/ciab346

Ishola, David; Manno, Daniela; Afolabi, Muhammed O; Keshinro, Babajide; Bockstal, Viki; Rogers, Baimba; Owusu-Kyei, Kwabena; Serry-Bangura, Alimamy; Swaray, Ibrahim; Lowe, Brett; +25 more... Kowuor, Dickens; Baiden, Frank; Mooney, Thomas; Smout, Elizabeth; Köhn, Brian; Otieno, Godfrey T; Jusu, Morrison; Foster, Julie; Samai, Mohamed; Deen, Gibrilla Fadlu; Larson, Heidi; Lees, Shelley; Goldstein, Neil; Gallagher, Katherine E; Gaddah, Auguste; Heerwegh, Dirk; Callendret, Benoit; Luhn, Kerstin; Robinson, Cynthia; Leyssen, Maarten; Greenwood, Brian; Douoguih, Macaya; Leigh, Bailah; Watson-Jones, Deborah; EBL3001 study group; (2021) Safety and long-term immunogenicity of the two-dose heterologous Ad26.ZEBOV and MVA-BN-Filo Ebola vaccine regimen in adults in Sierra Leone: a combined open-label, non-randomised stage 1, and a randomised, double-blind, controlled stage 2 trial. The Lancet Infectious Diseases, 22 (1). pp. 97-109. ISSN 1473-3099 DOI: https://doi.org/10.1016/S1473-3099(21)00125-0

Kagucia, E Wangeci; Gitonga, John N; Kalu, Catherine; Ochomo, Eric; Ochieng, Benard; Kuya, Nickline; Karani, Angela; Nyagwange, James; Karia, Boniface; Mugo, Daisy; +33 more... Karanja, Henry K; Tuju, James; Mutiso, Agnes; Maroko, Hosea; Okubi, Lucy; Maitha, Eric; Ajuck, Hossan; Mukabi, David; Moracha, Wycliffe; Bulimu, David; Andanje, Nelson; Aman, Rashid; Mwangangi, Mercy; Amoth, Patrick; Kasera, Kadondi; Ng'ang'a, Wangari; Nyaguara, Amek; Voller, Shirine; Otiende, Mark; Bottomley, Christian; Agoti, Charles N; Ochola-Oyier, Lynette I; Adetifa, Ifedayo MO; Etyang, Anthony O; Gallagher, Katherine E; Uyoga, Sophie; Barasa, Edwine; Bejon, Philip; Tsofa, Benjamin; Agweyu, Ambrose; Warimwe, George M; Scott, J Anthony G; Magarini Sub-County TDA SARS-CoV-2 Serosurveillance Team, The Bu; (2021) Anti-Severe Acute Respiratory Syndrome Coronavirus 2 Immunoglobulin G Antibody Seroprevalence Among Truck Drivers and Assistants in Kenya. Open Forum Infectious Diseases, 8 (7). ofab314-. DOI: https://doi.org/10.1093/ofid/ofab314

Lucinde, RK; Ong'ayo, G; Houlihan, C; Bottomley, C; Goldblatt, D; Scott, JAG; Gallagher, KE; (2021) Pneumococcal conjugate vaccine dose-ranging studies in humans: A systematic review. Vaccine, 39 (36). pp. 5095-5105. ISSN 0264-410X DOI: https://doi.org/10.1016/j.vaccine.2021.07.033

Basu, Partha; Brisson, Marc; Campos, Nicole; Clarke, Ed; Drolet, Mélanie; Gallagher, Katherine E; Henão Restrepo, Ana Maria; Howard, Natasha; Hutubessy, Raymond; Jit, Mark; +12 more... Kelly, Helen; Kim, Jane; Kreimer, Aimée; LaMontagne, D. Scott; Lewis, Rayleen; Markowitz, Lauri; Mounier-Jack, Sandra; Ogilvie, Gina; Perez, Norma; Schiller, John; Watson-Jones, Deborah; Whitworth, Hilary Sian; (2020) Review of the current published evidence on single-dose HPV vaccination 3rd Edition. Working Paper. London School of Hygiene & Tropical Medicine,. DOI: https://doi.org/10.17037/PUBS.04661079

Otieno, Grieven P; Murunga, Nickson; Agoti, Charles N; Gallagher, Katherine E; Awori, Juliet O; Nokes, D James; (2020) Surveillance of endemic human coronaviruses (HCoV-NL63, OC43 and 229E) associated with pneumonia in Kilifi, Kenya. Wellcome Open Research, 5. p. 150. DOI: https://doi.org/10.12688/wellcomeopenres.16037.1

Otieno, Grieven P; Murunga, Nickson; Agoti, Charles N; Gallagher, Katherine E; Awori, Juliet O; Nokes, D James; (2020) Surveillance of endemic human coronaviruses (HCoV-NL63, OC43 and 229E) associated with childhood pneumonia in Kilifi, Kenya. Wellcome open research, 5. 150-. ISSN 2398-502X DOI: https://doi.org/10.12688/wellcomeopenres.16037.2

Thindwa, Deus; Pinsent, Amy; Ojal, John; Gallagher, Katherine E; French, Neil; Flasche, Stefan; (2020) Vaccine strategies to reduce the burden of pneumococcal disease in HIV-infected adults in Africa. EXPERT REVIEW OF VACCINES, 19 (11). pp. 1085-1092. ISSN 1476-0584 DOI: https://doi.org/10.1080/14760584.2020.1843435

Uyoga, Sophie; Adetifa, Ifedayo MO; Karanja, Henry K; Nyagwange, James; Tuju, James; Wanjiku, Perpetual; Aman, Rashid; Mwangangi, Mercy; Amoth, Patrick; Kasera, Kadondi; +29 more... Ng'ang'a, Wangari; Rombo, Charles; Yegon, Christine; Kithi, Khamisi; Odhiambo, Elizabeth; Rotich, Thomas; Orgut, Irene; Kihara, Sammy; Otiende, Mark; Bottomley, Christian; Mupe, Zonia N; Kagucia, Eunice W; Gallagher, Katherine E; Etyang, Anthony; Voller, Shirine; Gitonga, John N; Mugo, Daisy; Agoti, Charles N; Otieno, Edward; Ndwiga, Leonard; Lambe, Teresa; Wright, Daniel; Barasa, Edwine; Tsofa, Benjamin; Bejon, Philip; Ochola-Oyier, Lynette I; Agweyu, Ambrose; Scott, J Anthony G; Warimwe, George M; (2020) Seroprevalence of anti-SARS-CoV-2 IgG antibodies in Kenyan blood donors. Science, 371 (6524). pp. 79-82. ISSN 0036-8075 DOI: https://doi.org/10.1126/science.abe1916

Basu, Partha; Brisson, Mark; Campos, Nicole; Clarke, Ed; Drolet, Mélanie; Gallagher, Katherine; Henão, Restrepo; Ana, Maria; Howard, N; Hutubessy, Raymond; +13 more... Jit, Mark; Kelly, H; Kim, Jane; Kreimer, Aimée; LaMontagne, Scott; Lewis, Rayleen; Markowitz, Lauri; Mounier-jack, Sandra; Ogilvie, Gina; Perez, Norma; Schiller, John; Watson-Jones, Deborah; Whitworth, Hilary Sian; (2019) Review of the current published evidence on single-dose HPV vaccination 2nd Edition. Working Paper. London School of Hygiene & Tropical Medicine. DOI: https://doi.org/10.17037/PUBS.04655690 Item availability may be restricted.

Gallagher, Katherine E; Knoll, Maria D; Prosperi, Chrissy; Baggett, Henry C; Brooks, W Abdullah; Feikin, Daniel R; Hammitt, Laura L; Howie, Stephen RC; Kotloff, Karen L; Levine, Orin S; +19 more... Madhi, Shabir A; Murdoch, David R; O'Brien, Katherine L; Thea, Donald M; Awori, Juliet O; Baillie, Vicky L; Ebruke, Bernard E; Goswami, Doli; Kamau, Alice; Maloney, Susan A; Moore, David P; Mwananyanda, Lawrence; Olutunde, Emmanuel O; Seidenberg, Phil; Sissoko, Seydou; Sylla, Mamadou; Thamthitiwat, Somsak; Zaman, Khalequ; Scott, J Anthony G; (2019) The Predictive Performance of a Pneumonia Severity Score in Human Immunodeficiency Virus-negative Children Presenting to Hospital in 7 Low- and Middle-income Countries. Clinical Infectious Diseases, 70 (6). pp. 1050-1057. ISSN 1058-4838 DOI: https://doi.org/10.1093/cid/ciz350

Whitworth, Hilary S; Gallagher, Katherine E; Howard, Natasha; Mounier-Jack, Sandra; Mbwanji, Gladys; Kreimer, Aimée R; Basu, Partha; Kelly, Helen; Drolet, Mélanie; Brisson, Marc; +1 more... Watson-Jones, Deborah; (2019) Efficacy and immunogenicity of a single dose of human papillomavirus vaccine compared to no vaccination or standard three and two-dose vaccination regimens: A systematic review of evidence from clinical trials. Vaccine, 38 (6). pp. 1302-1314. ISSN 0264-410X DOI: https://doi.org/10.1016/j.vaccine.2019.12.017

Gallagher, KE; LaMontagne, DS; Watson-Jones, D; (2018) Status of HPV vaccine introduction and barriers to country uptake. Vaccine, 36 (32 Pt). pp. 4761-4767. ISSN 0264-410X DOI: https://doi.org/10.1016/j.vaccine.2018.02.003

Gallagher, Katherine E; Erio, Tusajigwe; Baisley, Kathy; Lees, Shelley; Watson-Jones, Deborah; (2018) The impact of a human papillomavirus (HPV) vaccination campaign on routine primary health service provision and health workers in Tanzania: a controlled before and after study. BMC health services research, 18 (1). 173-. ISSN 1472-6963 DOI: https://doi.org/10.1186/s12913-018-2976-2

Gallagher, Katherine E; Kelly, Helen; Cocks, Naomi; Dixon, Sandra; Mounier-Jack, Sandra; Howard, Natasha; Watson-Jones, Deborah; (2018) Vaccine programme stakeholder perspectives on a hypothetical single-dose human papillomavirus (HPV) vaccine schedule in low and middle-income countries. Papillomavirus research (Amsterdam, Netherlands), 6. pp. 33-40. ISSN 2405-8521 DOI: https://doi.org/10.1016/j.pvr.2018.10.004

Gallagher, K.K., H; Cocks, N; Mounier-Jack, S; Dixon, S; Howard, N; Watson-Jones, D; Scoping Views On A Single Dose Human Papillomavirus (Hpv) Vaccin, IncomeCountries; (2018) Scoping views on a single dose human papillomavirus (HPV) vaccine schedule amongst policy makers in low and middle-income countries. Technical Report. London School of Hygiene & Tropical Medicine. DOI: https://doi.org/10.17037/PUBS.04649924

Gallagher, Katherine E; Howard, Natasha; Kabakama, Severin; Mounier-Jack, Sandra; Burchett, Helen ED; LaMontagne, D Scott; Watson-Jones, Deborah; (2017) Human papillomavirus (HPV) vaccine coverage achievements in low and middle-income countries 2007-2016. Papillomavirus research (Amsterdam, Netherlands), 4. pp. 72-78. ISSN 2405-8521 DOI: https://doi.org/10.1016/j.pvr.2017.09.001

Gallagher, Katherine E; Howard, Natasha; Kabakama, Severin; Mounier-Jack, Sandra; Griffiths, Ulla K; Feletto, Marta; Burchett, Helen ED; LaMontagne, D Scott; Watson-Jones, Deborah; (2017) Lessons learnt from human papillomavirus (HPV) vaccination in 45 low- and middle-income countries. PloS one, 12 (6). e0177773-. ISSN 1932-6203 DOI: https://doi.org/10.1371/journal.pone.0177773

Howard, Natasha; Gallagher, Katherine E; Mounier-Jack, Sandra; Burchett, Helen ED; Kabakama, Severin; LaMontagne, D Scott; Watson-Jones, Deborah; (2017) What works for human papillomavirus vaccine introduction in low and middle-income countries? Papillomavirus research (Amsterdam, Netherlands), 4. pp. 22-25. ISSN 2405-8521 DOI: https://doi.org/10.1016/j.pvr.2017.06.003

LaMontagne, D Scott; Bloem, Paul JN; Brotherton, Julia ML; Gallagher, Katherine E; Badiane, Ousseynou; Ndiaye, Cathy; (2017) Progress in HPV vaccination in low- and lower-middle-income countries. International journal of gynaecology and obstetrics, 138 Su. pp. 7-14. ISSN 0020-7292 DOI: https://doi.org/10.1002/ijgo.12186

Gallagher, KE; Kabakama, S; Howard, N; Mounier-Jack, S; Griffiths, UK; Feletto, M; Lamontagne, DS; Burchett, HED; Watson-Jones, D; (2016) Lessons learnt from human papillomavirus (HPV) vaccine demonstration projects and national programmes in low- and middle-income countries. Technical Report. UNSPECIFIED. DOI: https://doi.org/10.17037/PUBS.03351522

Gallagher, KE; Kadokura, E; Eckert, LO; Miyake, S; Mounier-Jack, S; Aldea, M; Ross, DA; Watson-Jones, D; (2016) Factors influencing completion of multi-dose vaccine schedules in adolescents: a systematic review. BMC public health, 16 (1). 172-. ISSN 1471-2458 DOI: https://doi.org/10.1186/s12889-016-2845-z

Gallagher, Katherine E; Baisley, Kathy; Grosskurth, Heiner; Vallely, Andrew; Kapiga, Saidi; Vandepitte, Judith; Kamali, Anatoli; De Sanjosé, Silvia; Changalucha, John; Hayes, Richard; +1 more... Watson-Jones, Deborah; (2016) The Association Between Cervical Human Papillomavirus Infection and Subsequent HIV Acquisition in Tanzanian and Ugandan Women: A Nested Case-Control Study. The Journal of infectious diseases, 214 (1). pp. 87-95. ISSN 0022-1899 DOI: https://doi.org/10.1093/infdis/jiw094

Howard, N; Mounier-Jack, S; Gallagher, KE; Kabakama, S; Griffiths, UK; Feletto, M; LaMontagne, DS; Burchett, HED; Watson-Jones, D; (2016) The value of demonstration projects for new interventions: The case of human papillomavirus vaccine introduction in low- and middle-income countries. Human vaccines & immunotherapeutics, 12 (9). pp. 2475-2477. ISSN 2164-5515 DOI: https://doi.org/10.1080/21645515.2016.1178433

Kabakama, Severin; Gallagher, Katherine E; Howard, Natasha; Mounier-Jack, Sandra; Burchett, Helen ED; Griffiths, Ulla K; Feletto, Marta; LaMontagne, D Scott; Watson-Jones, Deborah; (2016) Social mobilisation, consent and acceptability: a review of human papillomavirus vaccination procedures in low and middle-income countries. BMC public health, 16 (1). 834-. ISSN 1471-2458 DOI: https://doi.org/10.1186/s12889-016-3517-8