Format

Send to

Choose Destination
See comment in PubMed Commons below
Emerg Infect Dis. 2012 Jan;18(1):48-56. doi: 10.3201/eid1801.101969.

The 1918-19 influenza pandemic in Boyacá, Colombia.

Author information

1
Arizona State University, Tempe, AZ 85282, USA. gchowell@asu.edu

Abstract

To quantify age-specific excess-mortality rates and transmissibility patterns for the 1918-20 influenza pandemic in Boyacá, Colombia, we reviewed archival mortality records. We identified a severe pandemic wave during October 1918-January1919 associated with 40 excess deaths per 10,000 population. The age profile for excess deaths was W shaped; highest mortality rates were among infants (<5 y of age), followed by elderly persons (>60 y) and young adults (25-29 y). Mean reproduction number was estimated at 1.4-1.7, assuming 3- or 4-day generation intervals. Boyacá, unlike cities in Europe, the United States, or Mexico, experienced neither a herald pandemic wave of deaths early in 1918 nor a recrudescent wave in 1920. In agreement with reports from Mexico, our study found no death-sparing effect for elderly persons in Colombia. We found regional disparities in prior immunity and timing of introduction of the 1918 pandemic virus across populations.

PMID:
22257780
PMCID:
PMC3310082
DOI:
10.3201/eid1801.101969
[Indexed for MEDLINE]
Free PMC Article
PubMed Commons home

PubMed Commons

0 comments
How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for CDC-NCEZID Icon for PubMed Central
    Loading ...
    Support Center