High levels of scarlet fever are still being recorded in west London with the highest number of cases reported in Hounslow in April.
There were 83 suspected cases of the illness reported to public health officials in the four weeks to April 24 this year - 89% higher than the 44 cases reported in the same four weeks in 2015.
However, records show the infection most common between ages two and eight, could be easing as there were 113 cases of the childhood disease reported in the previous four weeks to March 27, 2016.
Hounslow was one of the only boroughs to see a continuous rise in scarlet fever, with 21 incidents reported in April, compared to just three in the same month in 2015, and 18 in March 2016, according to figures from Public Health England (PHE).
In April last year, a parent from Feltham Hill Junior School, renamed Oak Hill Academy, reported a case of scarlet fever and several unconfirmed cases.
Westminster was the only other west London borough to see a back-to-back rise, although relatively smaller, with six cases reported last month, compared to five in March 2016, and three in April 2015.
Scarlet fever cases reported April 2015
Scarlet fever cases reported March 2016
Scarlet fever cases reported April 2016
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Overall in the UK there were 2,616 cases of scarlet fever in the four weeks to April 24, 14% higher than 2,301 cases in the same period in 2015.
Similarly, the number of cases has dropped substantially from the four weeks to March 27, when there were 4,044 cases recorded.
Scarlet fever is treated with antibiotics but currently there is no vaccine for it.