D. A. Henderson

Record year1966–1976 (programme continued to 1977)

summaryConnects the WHO common framework with implementation in countries outside the twenty; 1976 meeting records locate Henderson's reports on progress in India, Bangladesh, searches in Asia, and Ethiopia. Local implementation was undertaken jointly by local and international teams.

M rationaleThe original M6.6 was estimated from cross-continental public-health outcomes excluding the twenty countries; this revision clarifies that the same regional exclusion also applies to coordination, supply, and individual labor, without adding outcomes or expanding M. Per-person shares remain provisional judgments.

attribution rationaleDonald A. Henderson .13; WHO personnel and laboratories serving the project outside the twenty countries .19; national smallpox-eradication teams outside the region .34; vaccine, needle, and supply teams .11; existing eradication foundations and inputs from already-counted regional projects .17; unresolved share .06. All are revisable research judgments; coordination labor still lacks item-by-item archives.

overlap boundaryCounts only the already separately listed WHO common projects outside the twenty countries of West and Central Africa: execution outcomes in Brazil, Indonesia, the Indian subcontinent, Southeast Africa, Ethiopia, and Somalia, plus coordination, reporting, technical support, and supplies serving those regions. Smallpox-measles implementation and results in the twenty countries, and headquarters coordination for that region, are excluded; regional experience is treated only as prior input. The 1980 certification is not counted retroactively.

Evidence gapsHeadquarters labor and country-by-country assignments do not yet have complete accounting. A clear boundary rule does not by itself mean that archives have established the absence of overlap in actual labor. Individual shares are provisional estimates of residual labor outside the region and need calibration against signed reports, correspondence, and project-assignment records. Foege's particular labor outside the region has not been fully established for this outcome; regional strategy contributions remain prior input and are not attributed as a second individual credit.

Record yearMid-to-late 1960s

summaryEstablished independently funded, staffed, and managed structures that applied surveillance and immunization resources to smallpox-measles implementation in the twenty countries, creating experience inputs for transfer into the WHO global program.

M rationaleThis is a twenty-country execution project with independent funding, management, geographic scope, and a joint measles scope, rather than an artificial split by institutional name. Its regional disease-control and organizational delivery can be separately identified, while the remaining geographic outcome of global smallpox eradication is excluded from this outcome.

attribution rationaleDonald A. Henderson .09; A. C. Curtis .05; J. Donald Millar .08; Alexander Langmuir .04; CDC and USAID project teams .16; West and Central African national public health teams .34; smallpox-measles vaccination and surveillance prior development .14; unresolved share .10. Shares are revisable research judgments.

overlap boundaryCounts the USAID/CDC twenty-country smallpox-measles regional project planned in 1965, established in 1966, and its regional delivery through 1970. Henderson receives only the planning and institutional-handover remainder; Millar and national teams carried out regional execution.

Evidence gapsExecution reports and local leads not verified country by country; measles control and smallpox regional results not yet disaggregated; specific method lists for how regional experience entered the global project are unresolved, thus counted only as a prior development pool rather than a second outcome.