Cowpox is similar to, but much milder than, the highly contagious and often deadly smallpox disease. Its close resemblance to the mild form of smallpox and the observation that dairymaids were immune from smallpox inspired the first smallpox vaccine, created and administered by English physician Edward Jenner.
San Leandro (CA state) ZIP code. ZIP code of San Leandro (CA) is 94577. Below you can find map of San Leandro, or look up other ZIP codes in California or other US states. If San Leandro's ZIP code is duplicated, and other places have same ZIP code number, you can use our ZIP code searcher by number 94577. San Leandro have more then one ZIP code.
Zip Code 96041 is located in the state of California in the Chico - Redding metro area. Zip code 96041 is primarily located in Trinity County. The official US Postal Service name for 96041 is HAYFORK, California. Portions of zip code 96041 are contained within or border the city limits of Hayfork, CA, . The area code for zip code 96041 is 530.