Evidence map›Paper›PMID 19357756›Full record

ArticleAfrican health sciences2008

Bacterial indicators of pollution of the Douala lagoon, Cameroon: public health implications.

Jane-Francis T K Akoachere, Pius M Oben, Beryl S Mbivnjo, Lucy M Ndip, Gerald Nkwelang, Roland N Ndip

Abstract read
In one paragraph

Article in African health sciences, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

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Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

5 citing papers in PubMed.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors.

Jane-Francis T K AkoachereDepartment of Biochemistry and Microbiology, Faculty of Science, University of Buea, Buea, Cameroon.
Pius M Oben
Beryl S Mbivnjo
Lucy M Ndip
Gerald Nkwelang
Roland N Ndip

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundIndiscriminate disposal of untreated wastes which are often heavily laden with sewage microorganisms some of which are pathogenic to humans into aquatic environments near cities could serve as potential dangers to human health.

objectiveA prospective study was undertaken to investigate the scope of potential bacterial pathogens and to assess the extent of pollution of the Douala lagoon.

methodsA total of eighty water samples were collected fortnightly from the lagoon at five stations from March to October 2005 and analysed for heterotrophic bacterial densities, coliform counts, faecal coliform and faecal streptococcal counts. Bacteria were isolated and identified using standard microbiology and biochemical techniques.

resultsHigh heterotrophic bacterial counts (33 x 10(5) - 161 x 10(5) CFU/ mL), total coliform counts (1.8 x 10(2) - 2.4 x 10(2) CFU/100 mL), faecal coliform counts (2.2 x 10(2) - 2.4 x 10(2) CFU/ 100 mL) and faecal streptococcal counts (2.1 x 102 - 2.3 x 10(2) CFU/100mL were observed in all sampling stations. Eleven species of bacteria: Bacteroides fragilis, Proteus vulgaris, Klebsiella pneumoniae, E. coli, Enterococcus faecalis, Enterobacter aerogenes, Citrobacter freundii, Aeromonas hydrophila, Pseudomonas aeruginosa, Bacillus mycoides and Serratia marcesens, were frequently isolated.

conclusionThe presence of potential bacterial agents such as Bacteroides fragilis, Pseudomonas aeruginosa, Aeromonas hydrophila, Klebsiella pneumoniae and E. coli in the lagoon may pose a serious threat to the health and well being of users of the Lagoon and calls for urgent intervention.

Indexed as

Water MicrobiologyBacteriaCameroonColony Count, MicrobialEnvironmental MonitoringHumansProspective StudiesPublic HealthWater Pollution

Identifiers

PMID19357756
PMCPMC2584327

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