Monkeypox 2022 global epidemiology; Report 2022-07-29

From the Global.health team (info@global.health) • Permalink

Summary

The Monkeypox 2022 outbreak has to date been detected in 94 countries (either confirmed or suspected cases), with 82 confirming transmission, 9 countries continuing to have suspected cases only, and 30 countries having discarded cases that were suspected, out of which 11 have only discarded cases. Overall there are 21077 confirmed and 1679 suspected cases (as of 2022-07-29; Figure 1A). Since 2022-07-27, 1770 new confirmed cases have been reported, and 4 new countries have been added to the list (Andorra, China, New Caledonia, Thailand) (Figure 1B).

Turn over for figure →

Figure 1: A) Number of confirmed cases per country. Lines show reported travel history between countries.
B) Number of cumulative confirmed cases and number of countries who have reported confirmed cases.
Country Confirmed % difference in cases compared to last week
United States 4630 99
Spain 3738 19
Germany 2540 15
England 2325 13
France 1829 26
Brazil 978 61
Netherlands 878 23
Canada 744 23
Portugal 588 14
Italy 426 13
Belgium 393 26
Switzerland 264 22
Peru 251 99
Nigeria 133 31
Israel 133 26
Democratic Republic Of The Congo 107 0
Austria 99 19
Sweden 85 10
Ireland 85 23
Denmark 76 58
Mexico 60 50
Scotland 59 15
Poland 53 89
Norway 51 10
Chile 45 73
Australia 44 7
Hungary 37 23
Ghana 34 88
Slovenia 33 22
Wales 30 30
Greece 29 45
Romania 20 5
Argentina 20 53
Luxembourg 19 137
Northern Ireland 18 38
Finland 17 30
Malta 17 88
Czech Republic 16 33
United Arab Emirates 16 23
Puerto Rico 13 62
Colombia 12 20
Singapore 11 83
Serbia 10 900
Croatia 10 66
Iceland 9 50
Central African Republic 8 0
Cameroon 6 0
Estonia 5 25
Gibraltar 5 0
Bulgaria 4 33
India 4 100
Lebanon 4 300
Saudi Arabia 3 200
Benin 3 0
South Africa 3 0
Costa Rica 3 200
Slovakia 3 200
Latvia 3 50
Ecuador 3 50
Dominican Republic 3 0
New Zealand 2 0
Republic of Congo 2 0
Taiwan 2 0
Jamaica 2 100
Morocco 1 0
Martinique 1 0
Russia 1 0
South Korea 1 0
Georgia 1 0
Bosnia And Herzegovina 1 0
Turkey 1 0
Barbados 1 0
Venezuela 1 0
Panama 1 0

Table 1: Number of confirmed cases by country (highest to lowest) and percentage change since last week.

Of the 21077 number of confirmed cases, 198 reported travel history. For 106 cases, travel history location was unknown.

The mean delay between confirmation and entry of suspected case was 5.01 days (median 2 days) and varied by country (n = 928 total number of cases where the dates of suspected and confirmed was known; Figure 2). Most countries do not report suspected cases.

graph: Delay to confirmation by country
Figure 2: Delay to confirmation by country. Link to figure

Genomic data is being reported via multiple open source repositories. In order to support ongoing genomic surveillance and improve representativeness of genomic sequences we here plot the relationship between number of genomic sequences vs. number of confirmed cases (Figure 3). The (combined) number of genomic sequences of the current outbreak is 437, where we consider a genomic sequence to be related to the current outbreak if it was reported from May 2022 onwards. The country with the highest number of genomic sequences reported is Germany. A comparison between the number of genomes and number of confirmed cases is below (Figure 3).

graph: Number of sequences from Nextstrain and confirmed cases
Figure 3: Number of sequences (downloaded via Nextstrain) and confirmed cases. Link to figure

The age and gender ratio is shown in Figure 4. 98 percent of cases (for which there was an entry for gender) are described as male. The mean age of confirmed cases is 41.

graph: Age and gender distribution
Figure 4: Age and gender distribution of monkeypox confirmed cases in 2022. 6% of confirmed cases include sufficient metadata to be included in this figure. Of these cases, 95% include reported age ranges that span multiple age categories. Under such circumstances, counts are evenly distributed among the categories that capture the reported age range. Link to figure

Data accessibility and reproducibility: All data used in this report are available from: https://github.com/globaldothealth/monkeypox. Should you identify any issues or have questions please raise an issue on GitHub or write to us: info@global.health. Latest data can be downloaded from here: https://github.com/globaldothealth/monkeypox/blob/main/latest.csv

Please see a description of the data curation process here: https://www.thelancet.com/journals/laninf/article/PIIS1473-3099(22)00359-0/fulltext