O virus do mixoma no coelho do mato (Sylvilagus minenses), sua transmissão pelos Aedes scapularis e aegypti
<abstract language="eng">The brazilian wild rabbit (Sylvilagus minensis) is sensible to the virus of the mixomatosis but the desease takes on it a mild character, lasts for long time and generally do not kill the animal. The tumors are generally smaller and less numerous than those o...
| Main Author: | |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Fundação Oswaldo Cruz (FIOCRUZ)
1943-01-01
|
| Series: | Memorias do Instituto Oswaldo Cruz |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0074-02761943000100010 |
| _version_ | 1797704713076998144 |
|---|---|
| author | Henrique Beaurepaire Aragão |
| author_facet | Henrique Beaurepaire Aragão |
| author_sort | Henrique Beaurepaire Aragão |
| collection | DOAJ |
| description | <abstract language="eng">The brazilian wild rabbit (Sylvilagus minensis) is sensible to the virus of the mixomatosis but the desease takes on it a mild character, lasts for long time and generally do not kill the animal. The tumors are generally smaller and less numerous than those of the domestic rabbit, but sometimes there were noted large and flat lesions (fig. 3). The natural infection of the wild rabbit may be quite common not only because many rabbits caught in the country were found to be immune as also because it was found among the animals caught in the country near Rio, one that was infected with mixomatosis. The experimental infection of the Sylvilagus may be easily obtained by cutan, subcutan or conjuntival way and also when a health wild rabbit is placed in the same cage with a sick domestic animal. It is also possible to obtain the infection of the wild and domestic rabbits by the bite of infected blood sucking insects as fleas and mosquitoes. The infected mosquito can transmit the disease 2 or 3 times til 17 days after an infective meal on a sick rabbit. The transmission is a mecanical one and only the proboscis of the insect contains the virus as it was shown by the inoculation of emulsions of the proboscis, thorax and abdomen of the mosquito. Though mecanical this kind of transmission acts as an important epidemiological mean of dissemination of the deseasse and splains the suddendly outbreaks of mixomatosis in rabbits breedings where no new rabbits were introduced since very long time. The transmition of mixomatosis by fleas (Slenopsylla) was at first demonstrated by us, then S. Torres pointed out the capacity of Culex fatigans to transmit the desease and now we have proved that Aedes scapularis and Aedes aegypti were also able to transmit it (Foto 1 and 2). The virus of the mixomatosis (Chlamidozoon mixoma) is seen on the smeavs of the tumors of the wild reabbit with the same morphology, as in the material of the domestic animal. |
| first_indexed | 2024-03-12T05:24:31Z |
| format | Article |
| id | doaj.art-22a8d571283e4cc4b2668b80098da426 |
| institution | Directory Open Access Journal |
| issn | 0074-0276 1678-8060 |
| language | English |
| last_indexed | 2024-03-12T05:24:31Z |
| publishDate | 1943-01-01 |
| publisher | Fundação Oswaldo Cruz (FIOCRUZ) |
| record_format | Article |
| series | Memorias do Instituto Oswaldo Cruz |
| spelling | doaj.art-22a8d571283e4cc4b2668b80098da4262023-09-03T07:24:46ZengFundação Oswaldo Cruz (FIOCRUZ)Memorias do Instituto Oswaldo Cruz0074-02761678-80601943-01-01381939910.1590/S0074-02761943000100010O virus do mixoma no coelho do mato (Sylvilagus minenses), sua transmissão pelos Aedes scapularis e aegyptiHenrique Beaurepaire Aragão<abstract language="eng">The brazilian wild rabbit (Sylvilagus minensis) is sensible to the virus of the mixomatosis but the desease takes on it a mild character, lasts for long time and generally do not kill the animal. The tumors are generally smaller and less numerous than those of the domestic rabbit, but sometimes there were noted large and flat lesions (fig. 3). The natural infection of the wild rabbit may be quite common not only because many rabbits caught in the country were found to be immune as also because it was found among the animals caught in the country near Rio, one that was infected with mixomatosis. The experimental infection of the Sylvilagus may be easily obtained by cutan, subcutan or conjuntival way and also when a health wild rabbit is placed in the same cage with a sick domestic animal. It is also possible to obtain the infection of the wild and domestic rabbits by the bite of infected blood sucking insects as fleas and mosquitoes. The infected mosquito can transmit the disease 2 or 3 times til 17 days after an infective meal on a sick rabbit. The transmission is a mecanical one and only the proboscis of the insect contains the virus as it was shown by the inoculation of emulsions of the proboscis, thorax and abdomen of the mosquito. Though mecanical this kind of transmission acts as an important epidemiological mean of dissemination of the deseasse and splains the suddendly outbreaks of mixomatosis in rabbits breedings where no new rabbits were introduced since very long time. The transmition of mixomatosis by fleas (Slenopsylla) was at first demonstrated by us, then S. Torres pointed out the capacity of Culex fatigans to transmit the desease and now we have proved that Aedes scapularis and Aedes aegypti were also able to transmit it (Foto 1 and 2). The virus of the mixomatosis (Chlamidozoon mixoma) is seen on the smeavs of the tumors of the wild reabbit with the same morphology, as in the material of the domestic animal.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0074-02761943000100010 |
| spellingShingle | Henrique Beaurepaire Aragão O virus do mixoma no coelho do mato (Sylvilagus minenses), sua transmissão pelos Aedes scapularis e aegypti Memorias do Instituto Oswaldo Cruz |
| title | O virus do mixoma no coelho do mato (Sylvilagus minenses), sua transmissão pelos Aedes scapularis e aegypti |
| title_full | O virus do mixoma no coelho do mato (Sylvilagus minenses), sua transmissão pelos Aedes scapularis e aegypti |
| title_fullStr | O virus do mixoma no coelho do mato (Sylvilagus minenses), sua transmissão pelos Aedes scapularis e aegypti |
| title_full_unstemmed | O virus do mixoma no coelho do mato (Sylvilagus minenses), sua transmissão pelos Aedes scapularis e aegypti |
| title_short | O virus do mixoma no coelho do mato (Sylvilagus minenses), sua transmissão pelos Aedes scapularis e aegypti |
| title_sort | o virus do mixoma no coelho do mato sylvilagus minenses sua transmissao pelos aedes scapularis e aegypti |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0074-02761943000100010 |
| work_keys_str_mv | AT henriquebeaurepairearagao ovirusdomixomanocoelhodomatosylvilagusminensessuatransmissaopelosaedesscapulariseaegypti |