[Seasonal dynamics in the occurrence of bovine trichophytosis and human dermatomycosis in Czechoslovakia]. / Sezónní dynamika výskytu trichofytózy skotu a dermatomykózy u lidí v CSR.

The occurrence of the outbreaks of bovine trichophytosis and numbers of people affected by this disease in the Czech Socialist Republic were studied in 1966 to 1977. The effectiveness of the preventive and therapeutic measures against the causative agents of the disease is proved by a marked drop of the number of outbreaks in all months in the mentioned period. The greatest drop was in March (74.9) and April (70.1 annually) and lowest in June to August (24.6 to 27.8 annually). Despite the drop of the number of trichophytosis outbreaks, the number of ill animals slightly rose (+402 heads). The slow decrease of the number of trichophytosis outbreaks in summer requires more intensive therapeutic and preventive activity. Summer emptying of stables, supporting the devitalization of dermatophytes, should be used in the sanitation of the houses. The highest monthly seasonal indices of bovine trichophytosis were found in May and April (more than 13% above the annual average), and the lowest in December (23% below the average) and in November (12.5% below the average). The seasonal occurrence of dermatomycoses in man does not coincide with the seasonal occurrence of the disease in cattle. The seasonal index is at its maximum in winter (January-March), reaching 13-15% above the average. The lowest value of the seasonal index was found in August (20% below the long-term average).

[The course of viral gastroenteritis of swine in Czechoslovakia during the period of 1971 to 1973 and its economic consequences]. / Prubeh virové gastroenteritidy prasat v Ceské Socialistické Republice v období let 1971 az 1973 a její ekonomické dusledky

Transmissible gastroenteritis of swine (TGE) was studied in detail for three years; over-all survey on epizootologic and commercial properties of this disease was thus obtained. Occurrence of TGE, its seasonal character, indices of morbidity, mortality and lethality were evaluated statistically. The morbidity rate dropped in 1973 from 68% to 41% in comparison with the year 1972, as well as the mortality rate decreased -- from 23% to 6% and as to the lethality rate -- from 34% to 14%. In the year 1972 (1973) 437.50 (275.21) animals were infected on an average per one focus of the disease, 146.88 (37.71) animals died among infected pigs and 13.84 (5.86) pigs were compulsorily slaughtered. Commercial losses amounted to 82 482 Kc per one vaccinated focus in 1972, and to 60 213 Kc per one non-vaccinated focus (irrespective of the costs of vaccination -- 70 755 Kc). In 1973 commercial losses were 7650 Kc on an average in vaccinated focuses, 41 000 Kc in non-vaccinated focuses (regardless of the costs of vaccination -- 14 797 Kc). Commercial effectiveness reflects in fewer natural focuses of the disease and in lower morbidity; the savings are 4.30 Kc per 1 Kc of investment costs.