Cambridge University Press (CUP)
0022-1724
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Bacteriophage-typing designations of Salmonella typhimurium
Tập 78 Số 2 - Trang 297-300 - 1977
SUMMARYThe phage-typing scheme of Callow (1959) has been extended. The original
number of types was 34; this has now risen to 207. Tables are presented which
show the provisional type designations and the definitive designations now being
introduced.
The isolation and classification of Tern virus: Influenza Virus A/Tern/South Africa/1961
Tập 64 Số 3 - Trang 309-320 - 1966
The aetiological agent of an epizootic among Common Terns (Sterna hirundo) in
South Africa in 1961 was isolated from several sick birds and named Tern virus.
It was classified on the basis of antigenic and morphological properties as a
strain of avian influenza virus, Myxovirus influenzae A/Tern/South Africa/1961.
The strain-specific antigen of Tern virus was unrelated to all known influenza
strai...
Age-related changes in the rate of disease transmission: implications for the design of vaccination programmes
Tập 94 Số 3 - Trang 365-436 - 1985
SUMMARYMathematical models are developed to aid in the investigation of the
implications of heterogeneity in contact with infection within a community, on
the design of mass vaccination programmes for the control of childhood viral and
bacterial infections in developed countries. Analyses are focused on
age-dependency in the rate at which individuals acquire infection, the question
of ‘who acquire...
The Prevention of Compressed-air Illness
Tập 8 Số 3 - Trang 342-443 - 1908
1. The time in which an animal or man exposed to compressed air becomes
saturated with nitrogen varies in different parts of the body from a few minutes
to several hours. The progress of saturation follows in general the line of a
logarithmic curve and is approximately complete in about five hours in man and
in a goat in about three hours.2. The curve of desaturation after decompression
is the sam...
Clostridium welchiifood poisoning
Tập 51 Số 1 - Trang 75-101 - 1953
1. Outbreaks of mild food poisoning have been investigated in which
heat-resistantCl. welchiiappeared to be the causative organism. The outbreaks
were characterized by colic and diarrhoea without vomiting, commencing 8–20 hr.
after ingestion of the contaminated food.2. The strains ofCl. welchiiconcerned
are only feebly toxigenic, and apart from the heat-resistance of their spores,
and some colonia...
Lactose-Fermenting Bacteria in Faeces
Tập 5 Số 3 - Trang 333-379 - 1905
The following experiments were begun with the object of ascertaining the
distribution in nature of certain lactose-fermenting organisms which are by some
grouped under the name Bacillus coli, but by others are regarded as belonging to
a different class of organisms; a difference of opinion which is most probably
the principal factor in causing the value of B. coli as an index of pollution to
be su...
Campylobacter enteritis – the first five years
Tập 89 Số 2 - Trang 175-184 - 1982
Five years have passed sinceCampylobacter jejunibecame generally recognized as a
common cause of acute diarrhoea (Skirrow, 1977) – although the essential
scientific discovery which led to this had been made several years earlier
(Butzleret al.1973) – so this is an appropriate time to take stock of what has
happened in that time and consider what we might usefully be doing to control
the disease.
The use of live vaccines in experimental Salmonella gallinarum infection in chickens with observations on their interference effect
Tập 54 Số 3 - Trang 419-432 - 1956
1. A good immunity was produced in chickens against oral infection with Salm.
gallinarum by the use of either of two live attenuated vaccines, one smooth, 9S
and one rough, 9R. Dead vaccines had little or no effect.2. The immunity
possessed by chickens vaccinated with 9R at 7 weeks of age commenced to wane 12
weeks later. Chickens similarly vaccinated with 9S were completely immune 4, 12
and 34 we...
Microneutralization tests for serological typing and subtyping of foot-and-mouth disease virus strains
Tập 81 Số 1 - Trang 107-123 - 1978
SUMMARYA microneutralization test for serotyping of FMD viruses is described. It
is based on earlier observations by Booth, Rweyemamu & Pay (1978) that
dose-response relationships in quantal microneutralizations often deviated from
linearity. The typing test described therefore utilizes undiluted virus
preparations. In about 90% of samples a positive typing was obtained in contrast
with about 50% ...
Klebsiella serotyping by counter-current immunoelectrophoresis
Tập 81 Số 2 - Trang 219-225 - 1978
SummaryThe development of aKlebsiellaserotyping method by counter-current
immunoelectrophoresis (CIE) is described.Antisera were prepared against the
capsular antigens of 72 type strains and tested for the specificity and strength
of their precipitin reactions with antigens from homologous and heterologous
serotypes. All antisera produced strong reactions with their homologous antigen:
when dilute...