Volume 22 • Issue 04 • 2018
document before we circulate it to our members
for consensus approval. the week that can be included in the document.
Not sure when the absolute dead-line is.
I agree with both Rick Last’s and Alf Lategan’s
comments, except about Lasolocid, as there
are contradictions in the literature about its
efficacy for Cryptosporidium. Lasolocid’s toxic
and effective levels are also rather close together,
and farmers may suffer losses, if administration
is not precise. Chlorine dioxide is available from
Stericlear and other distributors. Dear colleagues. Following on my note posted on
6 August, I can provide the following information
that could be included in the RuVASA consensus
document dealing with cryptosporidiosis. I
suggest including the following paragraph:
MH- 3 Aug 2018
Halocur may be obtained from MSD if a section
21 permit is obtained beforehand. Section 21
permits are only issued by the MCC [Medicines
Control Council] if accompanied by a positive
laboratory result.
GB - 5 Aug 2018
Emphasise the apparent dual role of Crypto
and pathogenic strains of Ecoli in most cases?
" Cryptecoli? " Important that other causes of
neonatal diarrhoea are investigated and ruled
out. Back in the 70s we had a national hysteria
when anything and everything was blamed on
Chlamydiosis, then a new disease. A diagnostic
rubbish bin until the situation was clarified.
Maybe we need 2 documents, one for farmers and
one for vets? Looks to me that the problem will
benefit from a scientific statistical survey on the
possible factors that may be at work?
A list of knowledgeable experts to be consulted
should help. The farmer document must
emphasise throughout that the farmer must
consult the vet and not just “donner” ahead on
his own.
MvV- 6 Aug 2018
Dear colleagues. I have to inform you of a
recent turn of events that will likely influence
procurement of Halocur for now. The Directorate
of Animal Health has informed the MCC of their
concerns about Halocur with respect to its ability
to affect Theileria species, and hence the ability
to cause a carrier state of these blood pathogens
in cattle or buffaloes treated with Halocur. Bovine
theileriosis is an important controlled disease
and the availability of a medicine that could be
used to suppress the clinical signs of Theileriosis
is of great concernm. Section 21 applications
for Halocur are currently on hold while DAFF is
reviewing the situation and consulting with the
company trying to get Halocur registered in SA. I
may be able to provide more information later in
MvV - 14 Aug 2018
The Directorate of Animal Health has informed
SAHPRA (the old MCC) of their concerns about
Halocur with respect to its ability to affect
Theileria species, and hence the ability to cause a
carrier state of these blood pathogens in cattle or
wildlife treated with Halocur. Bovine theileriosis
is an important controlled disease and the
availability of a medicine that could be used to
suppress the clinical signs of theileriosis is of
great concern. The Directorate of Animal Health
has decided that Section 21 applications for the
importation of Halocur will in future be reviewed
by both SAHPRA and the Directorate who will do
a risk assessment for each individual application.
Applications must conform to the following:
1. A laboratory diagnosis of cryptosporidiosis
must be based on necropsy and
histopathological confirmation, and the
results must be included with the application.
2. The applicants must indicate how they
calculated the volume of Halocur stipulated
in the application for importation.
3. The volume of Halocur to be imported may
only be enough for use over a period of 6
months.
4. Applications must be farm-specific and
cannot include more than one farm per
application.
5. The prescribed payment must accompany
the application.
Author List
AO - Adriaan Olivier
BL - Brigitte Luck
CvD - Chris van Dijk
DM - Dave Midgeley
EdP - Eben du Preez
FM - Faffa Malan
FvN - Francois van
Niekerk
GB - Gareth Bath
GH - Gerhard Harmse
HB-C - Hanri Bester-
Cloete
JW - Jacoba Wessels
Jo’D - Jacques O’Dell
JC - Johan Cloete
KR - Kobus Rabie
LW - Liezel Wasserman
LT - Loubser Theron
MF - Martin Ferreira
MvdL - Martin van der
Leek
MH - Maryke Henton
MvV - Moritz van Vuuren
NF - Neil Fourie
PR - Paul Reynolds
RM - Riaan Mulder
RL - Rick Last
TS - Thys Snyman
TC - Tod Collins
TO - Trish Oglesby
WG - Will Gratwick
WvN - Willem van Niekerk
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