| St. Albans, England | 1958 | 2/2 | Urmenyi and Franklin, 1961 |
| Denmark | 1965 | 1/None | Joker et al., 1965 |
| Macon, GA, USA | 1979 | 1/Not mentioned | Monroe and Tift, 1979 |
| Indianapolis, IN, USA | 1981 | 1/None | Kleiman et al., 1981 |
| The Netherlands | 1983 | 8/None | Muytjens et al., 1983; Muytjens, 1985; Muytjens and Kollee, 1990 |
| Athens, Greece | 1985 | 1/Not mentioned | Arseni et al., 1985 |
| Reykjavik, Iceland | 1986-1987 | 3/1 | Biering et al., 1989; Clark et al., 1990 |
| Boston, MA, and New Orleans, LA, USA | 1987 | 2/Not mentioned | Willis and Robinson, 1988 |
| Memphis, TN, USA | 1988 | 4/Not mentioned | Simmons et al., 1989 |
| Baltimore, MD, USA | 1990 | 1/Not mentioned | Noriega et al., 1990 |
| Cincinnati, OH, USA | 1990 | 1/Not mentioned | Gallagher and Ball, 1991 |
| Israel | 1993, 1995, 1997,1998 | 4/Not mentioned | Block et al., 2002 |
| Boston, MA, USA | 1995/1996 | 5/4 | Lai, 2001 |
| Belgium | 1998 | 12/2 | Van Acker et al., 2001 |
| Winston Salem, NC, USA | 2000 | 1/None | Burdette and Santos, 2000 |
| Israel | 1997-2000 | 5/None | Block et al., 2002; Bar-Oz B et al., 2001 |
| Knoxville, TN, USA | 2001 | 10/1 | Himelright et al., 2002; Weir, 2002 |
| Tennessee, USA | 2002 | 1/1 | CDC, 2002 |
| Wisconsin, USA | 2002 | 1/Not mentioned | CDC unpublished data, Bowen and Barden, 2006 |
| USA | 2003 | 6/Not mentioned | CDC unpublished data; Bowen and Barden, 2006 |
| France | 2004 | 2/Not mentioned | Coignard et al., 2004; Bowen and Barden, 2006 |
| USA | 2004 | 2/Not mentioned | CDC unpublished data; Bowen and Barden, 2006 |
| USA | 2005 | 2/Not mentioned | CDC unpublished data; Bowen and Barden, 2006 |
| Canada | 2007 | 2/Not mentioned | Pagotto and Farber, 2009 |
| New Mexico, USA | 2008 | 2/None | CDC, 2009 |
| Queretaro, Mexico | 2010 | 2/None | Flores et al., 2011 |
| Florida, Illinois, Missouri, and Oklahoma, USA | 2011 | 4/2 | CDC, 2012 |
| Not mentioned | 2012 | 1/None | Broge and Lee, 2013 |
| China | 2017 | 2/1 | Cui et al., 2017 |