As of December 4, 318 suspected cases of diphtheria and 28 deaths had been reported in 15 of Yemen’s 20 governorates.
Four people have been put in an isolation ward at Mt Kenya Hospital Nyeri after suspicion they were infected with anthrax.
The health ministry said at least 591 cases had been reported since January, a 42 percent increase from 2016.
Nigerian health officials reported 14 new confirmed monkeypox cases, bringing the total number of confirmed cases to 56.
Treatment centers increased staff, while health workers tracked down about 7,000 people who had interacted with confirmed and suspected plague patients.
Madagascar is experiencing its largest ever observed epidemic of pneumonic plague through human-to-human transmission.
The number of new cases and hospitalizations of patients, due to plague, is declining with the last confirmed bubonic case was reported on October 24 and the last confirmed pneumonic case was reported on October 28.
Between October 30 and November 3, there were 41 new cases and three deaths - a decline from the 238 cases and 12 deaths recorded the week prior.
A World Health Organization (WHO) spokesman confirmed media reports that both deaths and new cases were declining and most hospitalized patients had recovered.
The World Health Organization (WHO) has released funds and sent experts and supplies to Madagascar, while supporting neighboring countries to reduce the risk of regional spread.