Sunday, September 25, 2005

Correspondence: Elephantiasis and Austronesian migration

--- Gaston PICHON <> wrote:

> Date: Sun, 25 Sep 2005 11:12:03 +0200
> To:
> From: Gaston PICHON <>
> Subject: Austronesian parasite

Please find attached a paper that could interest
austronesian and austric groups. It deals with
lymphatic filariasis (elephantiasis), a human
parasitic disease present in all the tropical and
subtropical areas. The parasite seems to have
followed Austronesian migrations.

Starting from Sundaland equatorial rain forests

where it was present from the Pleistocene, it seems to
have speciated in Wallacea. A special form, associated
with diurnal mosquito vectors the eggs of which are
able to be transported at long-distance in
Austronesian multi-hull canoes (they can endure dessication
and some salinity ) settled in tropical Polynesian
islands, in New Caledonia, and ... in the Mon-Khmer
speaking Nicobars! This special form did not reach

Northern Philippines nor Taiwan. The Sundaland species
seems to have expanded later with nocturnal mosquitoes
associated with rice cultivation, towards the North
(China, Korea), and towards the West (South India, Sri



Gaston Pichon
Epidemiologie des maladies a vecteurs
IRD Dakar
UR 077
Paludologie Afrotropicale
BP 1386
Téléphone: (221) 849 35 34

18524 Dakar SENEGAL Fax : (221) 832 43 07
Metaphors are the trade winds of my mind.
Models are the doldrums. --Greg Dening

Genetic determinism of parasitic circadian periodicity
and subperiodicity in human lymphatic filariasis