The Western Hemisphere agricultural situation : review of 1966 and outlook for 1967 /

Cover title.

The Western Hemisphere agricultural situation : review of 1967 and outlook for 1968 /

Cover title.

A revision of the Epilachninae of the Western Hemisphere (Coleoptera: Coccinellidae) /

Item 16.

Fiber production in the western hemisphere /

"For Spanish edition of this material see: ... [his] Fibras vegetales y su producción en América. Translated by María A. Ruisánchez Masters. Unión panamericana, Officina de cooperación agrícola Pub. agric. nos. 137-140"--Foot-notes, p. 1.

Foreign assistance : resettlement of Panama's displaced El Chorrillo residents : briefing report to the Chairman, Subcommittee on Western Hemisphere Affairs, Committee on Foreign Affairs, House of Representatives /

"GAO/NSIAD-91-63BR"

Western Hemisphere agricultural situation : 1968 midyear review /

Updates a more comprehensive report published in April, 1968: The Western Hemisphere agricultural situation--review of 1967 and outllook for 1968, ERS-Foreign, 222.

Western Hemisphere agricultural situation : midyear review /

"Provides an updating of certain information presented in:: The Western Hemisphere agricultural situation--review of 1965 and outlook for 1966, ERS-Foreign 154, March 1966."

Meeting of directors of meteorological services of western hemisphere countries : hearings before the Committee on Foreign Affairs, House of Representatives, Seventy-seventh Congress, first session, on R.J. res. 191, a joint resolution to authorize the President of the United States to invite the governments of the countries of the western hemisphere to participate in a meeting of the national directors of the meteorological services of those countries, to be held in the United States as soon as practicable in 1941 or 1942 : to invite regional commissions III and IV of the International Meteorological Organization to meet concurrently therewith, and to authorize an appropriation for the expenses of organizing and holding such meetings ..

Mode of access: Internet.

The situation in El Salvador : hearings before the Subcommittees on Human Rights and International Organizations and on Western Hemisphere Affairs of the Committee on Foreign Affairs, House of Representatives, Ninety-eighth Congress, second session, January 26; February 6, 1984.

Item 1017-A, 1017-B (microfiche)

Convention and documentary material on nature protection and wild life preservation in the western hemisphere.

Mode of access: Internet.

Manual for completing the questionnaire on measures affecting services trade in the hemisphere

Includes bibliography

Antidumping and countervailing duties in a Western Hemispheric free trade agreement

Includes bibliography

Trade and investment flows between the Caribbean and the rest of the hemisphere in the context of the FTAA

Includes bibliography

Experimental infection of dogs with a Brazilian strain of Rickettsia rickettsii: clinical and laboratory findings

The bacterium Rickettsia rickettsii is the etiological agent of an acute, severe disease called Rocky Mountain spotted fever in the United States or Brazilian spotted fever (BSF) in Brazil. In addition to these two countries, the disease has also been reported to affect humans in Mexico, Costa Rica, Panama, Colombia and Argentina. Like humans, dogs are also susceptible to R. rickettsii infection. However, despite the wide distribution of R. rickettsii in the Western Hemisphere, reports of R. rickettsii-induced illness in dogs has been restricted to the United States. The present study evaluated the pathogenicity for dogs of a South American strain of R. rickettsii. Three groups of dogs were evaluated: group 1 (G1) was inoculated ip with R. rickettsii; group 2 (G2) was infested by R. rickettsii-infected ticks; and the control group (G3) was infested by uninfected ticks. During the study, no clinical abnormalities, Rickettsia DNA or R. rickettsii-reactive antibodies were detected in G3. In contrast, all G1 and G2 dogs developed signs of rickettsial infection, i.e., fever, lethargy, anorexia, ocular lesions, thrombocytopenia, anemia and detectable levels of Rickettsia DNA and R. rickettsii-reactive antibodies in their blood. Rickettsemia started 3-8 days after inoculation or tick infestation and lasted for 3-13 days. Our results indicate that a Brazilian strain of R. rickettsii is pathogenic for dogs, suggesting that canine clinical illness due to R. rickettsii has been unreported in Brazil and possibly in the other South American countries where BSF has been reported among humans.