| cryptosporidium infection in non-human hosts in malawi. | of 1346 faecal samples from the chikwawa and thyolo districts of malawi, analysed for the presence of cryptosporidium oocysts between october 2001 and may 2003, 61.3% were from cattle (29.8% of these were from calves <6 months old). cryptosporidium oocysts were detected during all three seasons studied in chikwawa and thyolo. in chikwawa, 13.6% of adult cattle and 11.7% of calves were infected, compared to 28.9% of adult cattle and 36.7% of calves in thyolo. dependent on season, between 7.8% and ... | 2009 | 21344786 |
| serological study of pigs for antibody against african swine fever virus in two areas of southern malawi. | a serological survey was conducted in july 1991 on domestic pigs in two areas of southern malawi which were severely affected by the african swine fever (asf) epizootic in 1989-1991. sixty-six of the 216 owners questioned reported having witnessed asf in their pigs. forty-seven owners had pigs with antibodies against asf virus, and the overall prevalence of pigs with anti-asf virus antibodies was found to be 12.4%, in 445 pigs sampled in 35 villages. spread of asf was thought to occur principall ... | 1995 | 8593400 |
| an outbreak of african swine fever in the southern region of malawi. | an outbreak of african swine fever (asf) was first detected in december 1989 in the southern region of malawi. during 1990 the outbreak reached epidemic proportions: by august 1990, over 31,000 pigs (45%) from a population of 70,000 in the affected areas had died or been slaughtered. in affected villages this accounted for 83% of the pigs present. the outbreak probably originated in the central region of malawi, where asf is enzootic. virus isolates from the southern and central region outbreaks ... | 1995 | 8593399 |