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Table 1 Main characteristics of the included studies reporting the prevalence of Strongyloides stercoralis in dogs

From: Global prevalence and epidemiology of Strongyloides stercoralis in dogs: a systematic review and meta-analysis

No.

First author

Publication year

Country

Continent

Diagnostic methods used

Quality assessment based on Newcastle–Ottawa Scale

1

Rizzo and Ricciardi

1978

Italy

Europe

Unclear

5

2

Ugochukwu and Ejimadu

1985

Nigeria

Africa

Saturated solution flotation, formalin-ether sedimentation

5

3

Tarish et al.

1986

Iraq

Asia

Necropsy

6

4

Stehr-Green et al.

1987

USA

North America

Formalin-ethyl acetate sedimentation

9

5

Epe et al.

1993

Germany

Europe

Coproscopical examinations

6

6

Bugg et al.

1999

Australia

Oceania

Sedimentation, zinc sulfate (ZnSO4) flotation

7

7

Itoh et al.

2003

Japan

Asia

Coproscopical examination

7

8

Anosike et al.

2004

Nigeria

Africa

Direct smear, concentration methods

5

9

Asano et al.

2004

Japan

Asia

Direct smear, saturated salt (NaCl) flotation, ZnSO4 flotation, sucrose flotation

8

10

Ramirez-Barrios et al.

2004

Venezuela

South America

NaCl flotation

8

11

Komtangi et al.

2005

Cameroon

Africa

McMaster

5

12

Júnior et al.

2006

Brazil

South America

Baermann, sedimentation, ELISA, IFAT

9

13

Gonçalves et al.

2007

Brazil

South America

Baermann, sedimentation, ELISA, IFAT

8

14

Lorenzini et al.

2007

Brazil

South America

Saturated NaCl flotation, ZnSO4 flotation

6

15

Papazahariadou et al.

2007

Greece

Europe

Teleman’s sedimentation

8

16

Dillard et al.

2007

Finland

Europe

Baermann

7

17

Ugbomoiko et al.

2008

Nigeria

Africa

Kato-Katz thick smear

7

18

Das et al.

2009

India

Asia

Unclear

5

19

Claerebout et al.

2009

Belgium

Europe

Sucrose flotation

8

20

Gates and Nolan

2009

USA

North America

ZnSO4 flotation, formalin-ethyl acetate sedimentation

8

21

Itoh et al.

2009

Japan

Asia

Formalin-ethyl acetate sedimentation

7

22

Takano et al.

2009

Japan

Asia

Direct smear, agar plate culture (APC)

7

23

Leelayoova et al.

2009

Thailand

Asia

Direct smear, formalin-ethyl acetate concentration

6

24

Razmi

2009

Iran

Asia

Mini Parasep® SF (sedimentation)

7

25

Mariana et al.

2010

Bolivia

South America

Willis-Malloy flotation

5

26

Zewdu et al.

2010

Ethiopia

Africa

Necropsy

6

27

Awoke et al.

2011

Ethiopia

Africa

Direct smear, flotation

5

28

Jones et al.

2011

Ethiopia

Africa

Necropsy

5

29

Itoh et al.

2011

Japan

Asia

Formalin-ethyl acetate sedimentation

8

30

Itoh et al.

2011

Japan

Asia

Formalin-ethyl acetate sedimentation

7

31

Paulos et al.

2012

Ethiopia

Africa

Sedimentation and flotation

5

32

Martins et al.

2012

Brazil

South America

PARATEST® Diagnostek (sedimentation)

7

33

Getahun and Addis

2012

Ethiopia

Africa

Sedimentation and NaCl flotation

6

34

Mircean et al.

2012

Romania

Europe

NaCl flotation

8

35

Mekbib et al.

2013

Ethiopia

Africa

Direct smear, flotation and sedimentation

5

36

G/selasie et al.

2013

Ethiopia

Africa

McMaster, sedimentation

5

37

Abere et al.

2013

Ethiopia

Africa

Direct smear, sedimentation and NaCl flotation

6

38

Perera et al.

2013

Sri Lanka

Asia

NaCl flotation, Sheather’s sucrose flotation, direct smear

6

39

Riggio et al.

2013

Italy

Europe

Flotation, Baermann

8

40

Ortuno et al.

2014

Spain

Europe

ZnSO4 flotation

7

41

Alvarado-Esquivel et al.

2015

Mexico

North America

Sheather’s and ZnSO4 flotation

8

42

Puebla et al.

2015

Cuba

North America

Direct smear, formalin ethyl acetate sedimentation, Kato-Katz smear, Willy-Malloy flotation

5

43

Elom et al.

2015

Nigeria

Africa

NaCl and ZnSO4 floatation Formol ether sedimentation

5

44

Hadi and Faraj

2016

Iraq

Asia

Direct smear, potassium dichromate K2Cr2O4 film, NaCl flotation, Formalin-ether sedimentation

5

45

Wright et al.

2016

UK

Europe

FLOTAC technique

7

46

Ferreira et al.

2016

Brazil

South America

Sucrose and NaCl flotation, water-ether sedimentation

7

47

Pumidonming et al.

2016

Thailand

Asia

Flotation, formalin-ethyl acetate sedimentation

7

48

Strkolcova et al.

2017

Slovakia

Europe

Flotation, Baermann, APC, ELISA

7

49

Paradies et al.

2017

Italy

Europe

Direct smear, Baermann, necropsy

8

50

Mircean et al.

2017

Romania

Europe

NaCl flotation, sedimentation

8

51

Jaleta et al.

2017

Cambodia

Asia

Baermann, Kato-Katz

9

52

Sauda et al.

2018

Italy

Europe

Flotation, Baermann

8

53

García et al.

2018

Venezuela

South America

NaCl flotation

5

54

Hurtado and Forero

2019

Colombia

Asia

Formalin-gasoline concentration

5

55

Iatta et al.

2019

Italy

Europe

Direct smear, Baermann, APC, IFAT, RT-PCR

8

56

Sanchez-Thevenet et al.

2019

Spain

Europe

Modified Ritchie formalin-ether, Sheather’s sugar flotation, RT-PCR

8

57

Kurnosova et al.

2019

Russia

Europe

NaCl and ammonium nitrate flotations

7

58

Sanpool et al.

2020

Thailand

Asia

APC

7

59

Beknazarova et al.

2020

Australia

Oceania

qPCR, RT-PCR

8

60

Dashchenko et al.

2020

Ukraine

Europe

Direct smear, Baermann, modified string test

6

61

Nagamori et al.

2020

USA

North America

Direct smear, flotation, sedimentation, Baermann

8