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1 October 1989 EFFECTS OF HANTAVIRAL INFECTION ON SURVIVAL, GROWTH AND FERTILITY IN WILD RAT (RATTUS NORVEGICUS) POPULATIONS OF BALTIMORE, MARYLAND
James E. Childs, Gregory E. Glass, George W. Korch, James W. LeDuc
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Abstract

Survival, growth rates, body size and fertility of wild caught Norway rats (Rattus norvegicus), infected and uninfected with a Hantavirus (antigenically related to Seoul virus), were compared. No differences were found in the survival of seronegative versus seropositive rats, as measured by mark–recapture experiments. Growth rates, as measured by weight gain but not by increased body length, were slower in seropositive, sexually mature (>200 g) rats, although no differences in the ultimate body size of infected versus uninfected rats were found. No differences in external measures of sexual maturity, or in embryo counts or testes sizes, were found for infected versus uninfected rats. We conclude that hantaviral infections have little or no impact on demographic processes in Norway rat populations.

Childs, Glass, Korch, and LeDuc: EFFECTS OF HANTAVIRAL INFECTION ON SURVIVAL, GROWTH AND FERTILITY IN WILD RAT (RATTUS NORVEGICUS) POPULATIONS OF BALTIMORE, MARYLAND
James E. Childs, Gregory E. Glass, George W. Korch, and James W. LeDuc "EFFECTS OF HANTAVIRAL INFECTION ON SURVIVAL, GROWTH AND FERTILITY IN WILD RAT (RATTUS NORVEGICUS) POPULATIONS OF BALTIMORE, MARYLAND," Journal of Wildlife Diseases 25(4), 469-476, (1 October 1989). https://doi.org/10.7589/0090-3558-25.4.469
Received: 20 February 1989; Published: 1 October 1989
JOURNAL ARTICLE
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KEYWORDS
fertility
growth
Hantavirus
host–virus relationship
Norway rats
Rattus norvegicus
Seoul virus
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