Carnival Corp (NYSE: CCL - option chain) shares are rising today after the company announced this morning that it will resume stops at Mexican ports now that health officials have lifted advisories against non-essential travel to the nation.

CCL also said the H1N1 Influenza scare will likely reduce second-quarter earnings by 5 cents per share. While that isn't a good thing, investors often prefer to know how bad the news instead of having to guess. If you think that the stock won't fall by too much in the coming months, then now could be a good time to look at a bullish hedged trade on CCL.

CCL opened this morning at $26.18. So far today the stock has hit a low of $25.81 and a high of $26.60. As of 11:35, CCL is trading at $26.41 up 1.41 (5.6%). The chart for CCL looks bearish and S&P gives CCL a negative 2 STARS (out of 5) sell ranking.

Bad news is good news. How can that be you say? When our trade deficit goes up it means that we are importing more that we are exporting. So why is this good? Well, for one thing it means that international trade is picking up.and that's a good thing. The March trade deficit grew by nearly 6% to $27 billion. The US trade deficit has plunged 52% from a year ago. The fact that imports and exports are falling at a slower rate brings a note optimism to world trade.

Late Tuesday, Carnival Corporation (NYSE: CCL) reported that it will temporarily cancel all stops in Mexico due to fears surrounding the swine flu. "We have decided to cancel calls at Mexican ports for all current sailings. Additionally, we will cancel calls in Mexico for all voyages departing Thursday, April 30 through Monday, May 4," the cruise line operator said in a statement.

Carnival isn't the only cruise line playing it safe. Sector peer Royal Caribbean Cruises Ltd. (NYSE: RCL) also announced plans to temporarily suspend port calls in Mexico. Currently, the World Health Organization (WHO) has not recommended any travel restrictions to halt the swine flu's spread.

Just as investors were beginning to feel somewhat positive -- the economy was at least bottoming, and possibly showing early signs of turning around -- swine flu has appeared and put the global economy under its own stress test.

The Obama administration declared a public health emergency Sunday because of the flu outbreak. So far officials have confirmed cases in New York, Texas, California and Kansas. Globally there have been cases of the same strain of the deadly flu, which is suspected in the deaths of 103 people in Mexico, as far as New Zealand.

One after another, sectors, markets and companies affected by the flu's consequences have exhibited symptoms -- good or bad.

BloggingStocks and DailyFinance have more:

• Don't fear the swine flu . . . trade it
• Airlines could suffer thanks to a potential swine flue epidemic
• Analyst warns Visa/Mastercard could be smacked by swine flu
• Swine flu: Outbreak takes its toll in the oil patch
• Fear of flu epidemic hurts stocks, helps some drug companies
• What would a swine flu pandemic do to the economy?

Earlier I took a look at the obvious impact that the pig pig flu outbreak could have on airlines, but I was surprised to see the profound impact it has had in the oil patch.

Black gold futures are 5% lower this morning because of global economic recovery concerns that have surfaced thanks to the "deadly swine flu." In early morning trading, June-dated crude was trading below $50 per barrel and recently dipped below $49 per barrel.

Given President Obama's meeting last weekend with Latin American leaders, a look at Latin America-related mutual funds seemed particularly timely. As such we turn to fund expert Mark Salzinger.

The editor of No-Load Fund Investor explains, "The best way for mutual fund investors to add exposure to Brazilian stocks is through Fidelity Latin America (FLATX) or T. Rowe Price Latin America (PRLAX)." Here's his review of the two mutual funds.

"Both funds have solid records and new managers, but each has substantial experience and is backed by deep research teams.

Sometimes a seemingly small issue is transformed into a much larger problem. This is what happened between the U.S. and Mexico. The U.S. had a "pilot program" allowing Mexican trucks to cross the U.S. border and use U.S. roads. The program was halted last week on the grounds that the Mexican trucks were unsafe.

Mexico retaliated and said they would raise tariffs on $2.4 billion worth of U.S. exports. Mexico's tariffs would be increased on 90 industrial and agricultural products. These tariffs are set to be imposed later this week.

The manager of the world's largest bond fund, PIMCO, has laid-out in unambiguous terms the problem facing the global economy in the quarters ahead: The U.S. and global recession will worsen -- with a "second wave" of turmoil -- unless governments increase fiscal stimulus and spending plans.

"The economic setback is still in its early stages," Koyo Ozeki, head of Asia-Pacific credit research at Pimco's Tokyo office, wrote in a report published on PIMCO's web site. "Any further decline in housing prices could accelerate the downturn, intensifying the pernicious feedback loop and possibly leading to a second wave in the financial crisis in the next six to 12 months."

It's as if every major economy in the world's emerging markets structured its economy to take advantage of U.S. consumption, and only U.S. consumption.

Of course, we know this isn't the case. Asia-to-Europe and Latin America-to-Asia trade, etc. expanded during the past decade, but then why is it that the end of the housing boom in the United States, and its accompanying slowdown in consumer spending, slowed demand seemingly everywhere -- in China, Brazil, Russia and in Europe?

Similarly, how is it that a banking crisis primarily rooted in the United States was able to propel a global financial crisis, in a multi-polar financial world? Economists and others speak of the great financial centers of the world -- London, Frankfurt, Hong Kong and Tokyo -- in addition to New York. How is it, then, that when New York has a problem -- admittedly its biggest financial crisis in generations -- the global financial system nearly freezes up, as we saw in the credit markets last fall? What ever happened to decoupling?

"Well managed, dominant firms use downturns to become more powerful -- and that's definitely what Telefonica (NYSE: TEF) is up to," says Roger Conrad in The Utility Forecaster.

"Incorporated in 1924 as a unit of US-based ITT, the Spain-based company now serves 47 million customers in its home country, 150 million in 14 Latin American nations and 45 million elsewhere in Europe.

"Thus far in the recession, diversity and dominance of fast-growing markets has kept Telefonica growing. Overall global customer rolls increased by 15.2% through the third quarter 2008.

Wal-Mart (NYSE: WMT) wants to increase its expansion overseas. It is taking on huge risks by doing so. It has already been severely beaten up in Korea and Germany and is having trouble making money in Japan.

According to The Wall Street Journal, Wal-Mart's new CEO Mike Duke "is expected to continue expanding Wal-Mart into new foreign markets, especially in developing nations, while remodeling domestic stores to better position the company against rivals such as Target Corp (NYSE: TGT).

In Wal-Mart's December report on store sales, its international stores lagged US properties in revenue increases. Some of the firm's main markets like China and Mexico are probably facing slower sales as the recession hurts their economies.

Emergencies make strange bedfellows. Carlos Slim, the Mexican billionaire, will put $250 million into The New York Times Company (NYSE: NYT). According to The New York Times, "Under the terms of the deal, Mr. Slim, who already owns 6.9 percent of the Times Company, would invest $250 million in the form of six-year notes with warrants that are convertible into common shares." The notes carry a 14% interest rate, which makes them the equivalent of junk debt.

If Slim lived in the US, The Times writers would beat him like a rented mule because of his close, some say too close, ties to the Mexican government. These cozy relationships are often viewed as one of the reasons he has done so well financially.

Forbes reports that Slim may be well-regarded outside Mexico, "But not in Mexico, where the media and the masses long have held a sneaking suspicion that there is something shady about Slim. He is decried as a rapacious monopolist who built his empire on cozy ties to Mexican presidents and other politicians."

Slim is a perfect target for investigative reporting, something The Times prides itself on. But, the paper needs the money, so Slim's potential conflicts of interest in his own country will be overlooked.

Douglas A. McIntyre is an editor at 24/7 Wall St.

This post is part of a special report, A Dozen Ways to Play an Obama Building Boom.

"I think we have bottomed in some sectors, including commodities and materials," explains Glenn Rogers. In Internet Wealth Builder, he explains, "President-elect Obama has said he will pour hundreds of billions into projects.

"The Chinese and the Europeans have also committed to huge amounts to infrastructure spending." Here, he looks at one play on this trend -- Cemex (NYSE: CX).

"If you want to venture back into the stock market at this point and you're a long-term investor, my advice is to buy high-quality names with low P/E ratios, no debt coming due next year, and the sustainable ability to pay a dividend.

"Late last month, this Mexican cement giant traded as low as $4.01. Then President-elect Obama announced his plan to spend billions on infrastructure projects and guess what happened?

"The share price shot up on the expectation that infrastructure spending will translate into a growing demand for cement.

"Cemex shares traded as high as $11.35 before pulling back to close the week at $8.16. That's still more than double the November low but this is a stock that was trading at over $30 last June so it still looks like good value at this level.

What is already known is that OPEC will almost certainly cut production at its December meeting. It has several members with faltering economies, particularly Venezuela and Iran. Even countries like Saudi Arabia would like to begin to see the profits that $70 oil were bringing in.

Rumors are that a production cut could hit two million barrels a day. With demand falling in large economies like the US and China, will that be enough? No one knows, but it is a good bet that if this reduction does not do the trick, there will be another one.

Oil may be pushed down by a second important factor. With prices low, the investment in drilling is dropping sharply, which means that, in the near future, supply will take another hit. According to The Wall Street Journal, "As oil and gas prices fall, drilling activity in the U.S. is slowing more than expected, battering shares of drilling companies, hurting economies in energy-producing states and sowing the seeds for supply shortages when the economy recovers."

It would probably be safe to guess that what it happening in the US is also working its way through drilling operations in other large countries. Oil consumers would have to be especially concerned if this is happening in non-OPEC states like Russia, Mexico and Canada where low oil prices are combining with a deep recession to cut capital expenditures on oil exploration.

The price of oil is going up, and if drilling continues to slow, it may stay up for a long time.

Douglas A. McIntyre is an editor at 247wallst.com.

"Weakness in commodities suggests a screaming sign of an overreaction; it's time to take another look at a high-quality, high-yielding commodity stocks such as Southern Copper (NYSE: PCU)," says global investing expert Nick Lanyi.

In his High Yield International, he says, "With mines in Mexico and Peru, Southern Copper ranks #1 in total copper reserves of any publicly traded company, making it almost a pure play on a rebound in the metal's price." Here's his contrarian outlook.

"Southern Copper has enough reserves to continue its current rate of production for the next 80 years without a single expansion or acquisition.

"With copper prices falling, the firm's earnings are taking a hit -- and the dividend has recently been cut. Now that this cut has already been factored into the shares, I think it's a better time to look at the stock than just a few weeks ago.

"Based on 2008 dividends, the stock yields 12.7% at the current price. Even if the dividend comes down more, I look for a yield of 8-9% over the next 12 months.