rat borne

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• Brown rat — Rattus norvegicus redirects here. For the album, see Rattus Norvegicus (album). Brown rat Conservation status …   Wikipedia

• Black rat — Rattus rattus redirects here. For the album by Merzbow, see Rattus Rattus (album). Black rat Rattus rattus Conservation status …   Wikipedia

• Marsh rice rat — Temporal range: Rancholabrean (300,000 years before present) – present Conservation status …   Wikipedia

• Sand rat — Sand Sand, n. [AS. sand; akin to D. zand, G. sand, OHG. sant, Icel. sandr, Dan. & Sw. sand, Gr. ?.] 1. Fine particles of stone, esp. of siliceous stone, but not reduced to dust; comminuted stone in the form of loose grains, which are not coherent …   The Collaborative International Dictionary of English

• Virus — A microorganism smaller than a bacteria, which cannot grow or reproduce apart from a living cell. A virus invades living cells and uses their chemical machinery to keep itself alive and to replicate itself. It may reproduce with fidelity or with… …   Medical dictionary

• Fever — Although a fever technically is any body temperature above the normal of 98.6 degrees F. (37 degrees C.), in practice a person is usually not considered to have a significant fever until the temperature is above 100.4 degrees F (38 degrees C.).… …   Medical dictionary

• typhus — A group of acute infectious and contagious diseases, caused by rickettsiae that are transmitted by arthropods, and occurring in two principal forms: epidemic t. and endemic (murine) t.; typical symptoms include: severe headache, shivering and… …   Medical dictionary

• environment — environmental, adj. environmentally, adv. /en vuy reuhn meuhnt, vuy euhrn /, n. 1. the aggregate of surrounding things, conditions, or influences; surroundings; milieu. 2. Ecol. the air, water, minerals, organisms, and all other external factors… …   Universalium

• Frankfurter Judengasse — Die bogenförmige Judengasse auf einer Stadtansicht von Matthäus Merian aus dem Jahr 1628 Die Frankfurter Judengasse war das von 1462 bis 1796 bestehende jüdische Ghetto in Frankfurt am Main. Es war das erste und eines der letzten in Deutschland… …   Deutsch Wikipedia

• Lyme disease — Classification and external resources Nymphal and adult deer ticks can be carriers of Lyme disease. Nymphs are about the size of a poppy seed. ICD 10 A …   Wikipedia

• List of viruses — This is a list of biological viruses. See also List of computer viruses This is a list of biological viruses, and types of viruses. Please add to this list as appropriate. Note that some of these terms may be synonyms for the same virus; if there …   Wikipedia