Situation on October 12th1 |

Cholera update - Guinea BissauCholera update - Guinea Bissau

Summary of data from May to October 12th 2008

Prepared by WHO Country Office, Guinea-Bissau

Situation on October 12th2 |

Overview of the epidemicOverview of the epidemic

10,866 cumulative cases and 184 deaths in all 11 regions (case-fatality rate = 1.7% or 17 deaths per 1000 infected persons)

69% of all cases and 34% of all deaths are registered in Bissau, the capital.

The highest attack rates (number of cases / population) seen in Biombo, Bissau, Bijagos and Sao Domingos ranks respectively (2.18%, 1.85%, 1.82% and 1.50 – see and map). Case management is worse in São Domingos amongst the 4 regions above, however, Quinara and Bafata are leading negatively as far as most of deaths occurs outside treatment centres (see slide 7)

The number of cases and deaths for the last week is apparently lower. Four regions with minor scale epidemic still have to notify cases for the weekend. As far Bissau and Biombo dictates the trend of the epidemic and we have 100% data completeness in these regions, we may hope that we are in plato or a curve starting to decline.

Situation on October 12th3 |

Total number of cholera cases and deaths by week – Guinea Bissau 2008Total number of cholera cases and deaths by week – Guinea Bissau 2008

0

200

400

600

800

1000

1200

1400

1600

Alta por c ura Óbitos

Situation on October 12th4 |

Weekly lethality and incidence of new cases – Guinea Bissau 2008Weekly lethality and incidence of new cases – Guinea Bissau 2008

0,00%

0,05%

0,10%

0,15%

0,20%

0,25%

Taxa d

e A

taq

ue

0,0%

5,0%

10,0%

15,0%

20,0%

25,0%

30,0%

Taxa d

e l

eta

lid

ad

e

T. Ataque T. Letalidade

1% cutt-off

Situation on October 12th5 |

Total cholera cases and deaths by region – 2008, n=8.439Total cholera cases and deaths by region – 2008, n=8.439

11 6 14 63 0 10 11 17 28 15 90

1000

2000

3000

4000

5000

6000

7000

8000

Bafata Bijagos Biombo Bissau(SAB)

Bolama Cacheu Gabu Oio Quinara SãoDomingos

Tombali

Cases Deaths

Situation on October 12th6 |

40 – 60 cases / 10 000 population

60 – 100 cases / 10 000 population

100 + cases / 10 000 population

Number of cholera cases / 10.000 population by region, Guinea-Bissau 2008Number of cholera cases / 10.000 population by region, Guinea-Bissau 2008

20 – 40 cases / 10 000 population

1 – 20 cases / 10 000 population

Situation on October 12th7 |

Cholera case-fatality rate by region in Guinea-Bissau – 2008Cholera case-fatality rate by region in Guinea-Bissau – 2008

8,7%

1,4% 1,0% 0,8%

5,9%5,3%

4,6%

10,1%

8,4%

6,0%

1,7%0,0%

0,0%

2,0%

4,0%

6,0%

8,0%

10,0%

12,0%

cut-off