El Salvador programs / El Salvador award RA(HA)-07-00 · 1958–1972 · health systems, policy and finance
Various aqueous ovicidal formulations, some of which pose minimum hazards for higher organisms, are described for use against Aedes aegypti (L.). These ovicides appear to attack mainly layers of the eggshell which resist water permeability. Humidity effects were studied before and after treatment. Basic and acidic formulations containing both nonpolar and polar compounds were found effective against either dry or moist eggs exposed to ambient conditions after treatment. The basic mixture contained a nonpolar long-chain aliphatic amine such as octylamine emulsified in an aqueous solution of a polar compound such as ethanolamine or urea, and the acidic mixture contained a nonpolar fatty acid such as octanoic acid in aqueous polar mercapto acid. Nonpolar compounds alone in water were ovicidal under special conditions. An emulsion of fatty acid in water was effective against eggs exposed to high humidity before or after treatment, and aqueous fatty amines were ovicidal for eggs exposed to high humidity after treatment. Fatty amines, ranging widely in chain length and polarity, were evaluated against both larvae and eggs. Relative larvicidal activities correlated roughly with ovicidal a
Source: DEC abstract, PN-AAA-050 (1971). The source's own text.
Operated in: El Salvador. 1 other country is only tagged on documents.
When the program ran, from its start year to the latest document year. A hatched bar means the start is our estimate.
Axis: years in documents. The start year comes from first seen; the end is the latest document year, so the program may have run longer.
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Operated in El Salvador, 1961 1 source
Scope: country: El Salvador. Set by the countries the program's documents name most often. High confidence.
How sure we are: 1.
| Name | Years | Basis | Evidence |
|---|---|---|---|
| 1970 |
| Stated in a document |
| 1 source |
| Name | Years | Basis | Evidence |
|---|---|---|---|
| PASA/RA(HA)-07-00 (pasa, fiscal year not recorded) | 1958 to 1972 | Stated in a document | 32 sources |
| Name | Years | Basis | Evidence |
|---|---|---|---|
| Centers for Disease Control (CDC) (U.S.) | 1958 to 1972 | Stated in a document | 32 sources |
| Name | Years | Basis | Evidence |
|---|---|---|---|
| El Salvador | 1961 | Stated in a document | 1 source |
Sector profile (computed): Health systems, policy and finance (general health) 58%; Malaria 18%; Agriculture: crop production, inputs, pests, irrigation 12%
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Program key awd:RA(HA)-07-00