Evidence map›Paper›PMID 34960680›Full record

SynthesisViruses2021

Influenza A and D Viruses in Non-Human Mammalian Hosts in Africa: A Systematic Review and Meta-Analysis.

Annie Kalonda, Marvin Phonera, Ngonda Saasa, Masahiro Kajihara, Catherine G Sutcliffe, Hirofumi Sawa, Ayato Takada, Edgar Simulundu

Open access · goldAbstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in Viruses, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
0.6field-weighted citation impact, top 30% of its field
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

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

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

6 citing papers in PubMed, 8 citations in OpenAlex.

  1. Article
  2. Prophage: agent provocateur?Archives of microbiology · 2026
    Review
  3. Review
  4. Article
  5. Article
  6. Manganese-based nanoadjuvants for enhancement of immune effect of DNA vaccines.Frontiers in bioengineering and biotechnology · 2022
    Article
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

8 authors at 3 institutions in 3 countries.

Annie KalondaDepartment of Biomedical Sciences, School of Health Sciences, University of Zambia, Lusaka 10101, Zambia.
Marvin PhoneraDepartment of Disease Control, School of Veterinary Medicine, University of Zambia, Lusaka 10101, Zambia.ORCID 0000-0002-5733-9844
Ngonda SaasaDepartment of Disease Control, School of Veterinary Medicine, University of Zambia, Lusaka 10101, Zambia.
Masahiro KajiharaDivision of Global Epidemiology, International Institute for Zoonosis Control, Hokkaido University, N 20 W10, Kita-ku, Sapporo 001-0020, Japan.
Catherine G SutcliffeDepartment of Epidemiology, Johns Hopkins University Bloomberg School of Public Health, Baltimore, MD 21205, USA.ORCID 0000-0001-8512-8326
Hirofumi SawaDepartment of Disease Control, School of Veterinary Medicine, University of Zambia, Lusaka 10101, Zambia.ORCID 0000-0003-2569-2755
Ayato TakadaDepartment of Disease Control, School of Veterinary Medicine, University of Zambia, Lusaka 10101, Zambia.ORCID 0000-0003-2464-6642
Edgar SimulunduDepartment of Disease Control, School of Veterinary Medicine, University of Zambia, Lusaka 10101, Zambia.ORCID 0000-0001-9423-0816
University of Zambia · ZMHokkaido University · JPJohns Hopkins University · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

We conducted a systematic review and meta-analysis to investigate the prevalence and current knowledge of influenza A virus (IAV) and influenza D virus (IDV) in non-human mammalian hosts in Africa. PubMed, Google Scholar, Wiley Online Library and World Organisation for Animal Health (OIE-WAHIS) were searched for studies on IAV and IDV from 2000 to 2020. Pooled prevalence and seroprevalences were estimated using the quality effects meta-analysis model. The estimated pooled prevalence and seroprevalence of IAV in pigs in Africa was 1.6% (95% CI: 0-5%) and 14.9% (95% CI: 5-28%), respectively. The seroprevalence of IDV was 87.2% (95% CI: 24-100%) in camels, 9.3% (95% CI: 0-24%) in cattle, 2.2% (95% CI: 0-4%) in small ruminants and 0.0% (95% CI: 0-2%) in pigs. In pigs, H1N1 and H1N1pdm09 IAVs were commonly detected. Notably, the highly pathogenic H5N1 virus was also detected in pigs. Other subtypes detected serologically and/or virologically included H3N8 and H7N7 in equids, H1N1, and H3N8 and H5N1 in dogs and cats. Furthermore, various wildlife animals were exposed to different IAV subtypes. For prudent mitigation of influenza epizootics and possible human infections, influenza surveillance efforts in Africa should not neglect non-human mammalian hosts. The impact of IAV and IDV in non-human mammalian hosts in Africa deserves further investigation.

Indexed as

Influenza A virusThogotovirusAfricaAnimalsAnimals, WildAntibodies, ViralMammalsOrthomyxoviridae InfectionsPrevalenceSeroepidemiologic StudiesAntibodies, ViralAfricaanimal influenzainfluenza A virusinfluenza D virusprevalenceseroprevalence

Identifiers

PMID34960680
PMCPMC8706448
OpenAlexW3215306884

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.